make a crack
To say something particularly sarcastic, ironic, insolent, or snide. I've had enough of you two making cracks from the back of class. Go to the principal's office, now! Someone in the audience made a crack about his weight, and the whole place went deathly quiet.
make a crack
Utter an impudent, sarcastic, or ironic remark, as in She's constantly making cracks about the store's management. The noun crack here alludes to a hunter's shot at game. [Slang; late 1800s]