The first time I used vicious mockery in-campaign I just constructed and sang a full song parody out of Eye of the Tiger. Was it overkill for a cantrip? Probably. Did I care? No, cuz it was awesome and I was able to floor everybody with it.

Here's how it went:

[Context: We were fighting some zombified tieflings on a bridge and the image that was used for them made them look like they just walked out of a dead tree... also, Ingbar is my Bard's first name.]

Movin up!
Kickin your buuuuuutt
With the poooower of muuuuusic
And I no-ticed that you're not-made-of wood
Just some skin that is su-per ****ed uuuuuuuuuuuup

How many times
Will I have to caaaaaast
This spell before you peeeeeerish

What's the difference if you explode right here
or if you wander around with no priiiiiiiiide
Take the sick song of Ingbar it is super-awesome
with these tunes I will melt all your faaaaaces
and-these few final chords will pop you right in the eye
and your sockets will blaze in the gloooooooooo
ry of Ingbaaaaaaaar

Just look them dead in the eye and tell them “she’d be alive if it weren’t for you.” Odds are you’ll hit some sort of nerve.

Hex (wis) and mockery == looking to make words hurt.

Quote from Wakarusa >>

Hex (wis) and mockery == looking to make words hurt.

 Hex doesn't affect saving throws.

Only ability checks... yeah I know. dog gone it. 

Quote from Wakarusa >>

Only ability checks... yeah I know. dog gone it. 

 Don't feel too bad :).  You can still do it with bestow curse.

"You're a sad excuse for a pillow, you sack of feathers" mocking a kenku to death.

Quote from DaFogues >>

The first time I used vicious mockery in-campaign I just constructed and sang a full song parody out of Eye of the Tiger. Was it overkill for a cantrip? Probably. Did I care? No, cuz it was awesome and I was able to floor everybody with it.

Here's how it went:

[Context: We were fighting some zombified tieflings on a bridge and the image that was used for them made them look like they just walked out of a dead tree... also, Ingbar is my Bard's first name.]

Movin up!
Kickin your buuuuuutt
With the poooower of muuuuusic
And I no-ticed that you're not-made-of wood
Just some skin that is su-per ****ed uuuuuuuuuuuup

How many times
Will I have to caaaaaast
This spell before you peeeeeerish

What's the difference if you explode right here
or if you wander around with no priiiiiiiiide
Take the sick song of Ingbar it is super-awesome
with these tunes I will melt all your faaaaaces
and-these few final chords will pop you right in the eye
and your sockets will blaze in the gloooooooooo
ry of Ingbaaaaaaaar

 

 Nice. I love twisting around classic songs into D&D.

Did one for Journey's "Don't Stop Believin'":

Working hard to get my kill...!

Everybody wants a thrill,

Slaying anything to roll those dice,

Just oooone more tiiiiime.

Some have lost, some have won,

Some were born to roll a 1,

Oh, the killing never ends it goes on and on and on and oooooon...!

In a fight with a owlBear I yelled out "Hay you Harry Potter Reject" so it would be descticted to hot hurt my partys Tank that was fighting with out armor.  The extra miss change was so worth it.

"If you're going to draw your sword, at least TRY to look like you're not waving your father's c**k about."

Here's a few...

If ignorance is bliss, why aren't you happier?

You make me wish there was a Disguise Others spell.

Your mother was a hamster and your father smelt of elderberries.

Look at that, everyone! They can speak Common!

*to party members* You know, it's good we aren't facing intellect devourers. *looks at opponent* Oh, not you. You'd be fine.

The only difference between you and the mud on my boots is that the mud is going to be going somewhere.

Are you always this stupid, or are you making a special effort today? (You can replace stupid with something else. ex: ugly, lazy, weak

I didn't know Sh*t Golems existed until you showed up.

The only things you've ever killed are my expectations.

*looks at party* Well, looks like the village idiot escaped again.

It's incredible that you can bring such joy to a room by leaving it.

Is there some Elemental Plane of Stupid you came from?

If laughter is the best medicine, then your fighting could cure the multiverse.

Why don't you give me your weapon so I can hit myself with it? That would be more effective than you trying.

What are you going to use as a face when the baboon wants his butt back?

Okay...

Maybe that was more than a few.

Oh manticore with maw unclean
Your roar's a feeble blare.
Your human face is foul and mean,
A clown with tangled hair.

Oh shifting cat with eyes of spite
Your tricks are worn and thin
Your tentacles do naught but fright,
Just flailing in the wind.

Oh mimic with your sticky guise,
A chest that's cursed with glue.
Your nature's told by hungry eyes,
A beast with no real view.

"Egads!  Your face looks like it was set on fire and then put out with a hammer!"

"You have a face that could stop a warhorse....and it looks like it has!"

"I know we just met, but I already wish we were better strangers."

"You look like something I would draw with my feet."

"I’m jealous of all the people who haven’t met you."

"Do you suffer from a lack of a father figure?" (works best after their father has died)

“I’d throw you into a bag of devouring, but it’d probably spit you right back out with the rest of the garbage.” 

“Your parents abandoning you is no excuse for that behavior. And by behavior I mean that hideous thing you’re wearing. Burn it.” 

“You smell so bad that you make sewer rats retch in disgust.” 

“Even a beholder would scream in horror at your sheer monstrosity.” 

“You’re a prime example of why natural selection is bullshit.” 

“I’ve seen barbarians more sophisticated than you. In all fields.” 

“I’m not fighting you. It’d be a waste of talent. My talents, that is.” 

“Why would I stab you? I’d lose my dagger in those folds.” 

“I’d rather be in a staring contest against a basilisk than within ten feet of you.” 

“Your skull is thicker than a fortress wall.” 

“For the sake of all beings, I hope your idiocy isn’t contagious.”