Curse

You manifest the entirety of your emotion into a single exclamation.
Shout a profanity (pre-existing or made-up) at a creature within range (it does not need to understand the language the swear word is spoken in).
On a successful save, the creature is dealt 1d4 + 1 psychic damage. 
On a failed save, the spell deals 1d4 +1 psychic damage and inflicts fear for 2 turns. 
Once the profanity has been used 1d4 times, it has entered the common vocabulary and cannot be used again to the same effect. 
Should the DM determine that the swear word is the height of profanity, the spell slot is retained - as a cuss of that level would have the same effect without magic. This is only effective once per swear word. 
You may instead cast Curse using your reaction in response to taking damage.

*Range: Target's hearing 
*Class(es): Any spellcasting class