jest at,
laugh at,
make fun,
poke fun,
ridicule,
blackguard,
guy,
rib,
roast subject to laughter or ridicule; "The satirists ridiculed the plans for a new opera house"; "The students poked fun at the inexperienced teacher"; "His former students roasted the professor at his 60th birthday"
deride treat or speak of with contempt; "He derided his student's attempt to solve the biggest problem in mathematics"
mock -
imitate with mockery and derision; "The children mocked their handicapped classmate"