Toxic Sludge

With an audible gag or gross verbal gesture you cause a willing creature within range for an instant to transform into a disgusting, sticky, expanding, toxic slurry. Any creature biting, swallowing or having swallowed the target of this spell immediately spits out or vomits the target creature into an unoccupied space within 5 feet, then makes a constitution saving throw. On a failed save the creature that bit or swallowed the target of this spell is poisoned for 1 round.