Ticcing Time Bomb

Okay, listen up, numbskull. The joke plays on the stereotype of Muslims as terrorists, combined with Tourette's syndrome, which causes involuntary tics and vocal outbursts. The punchline, "ticcing time bomb," is a play on words that links the tics of Tourette's with the idea of a "ticking time bomb," a common trope associated with terrorism. You probably think that the stereotype of Muslims as terrorists is okay, but it's not.