Igma

Alright, listen up, you simpleton! This "Igma" joke is a play on words. When our friend Bob here says, "Igma is my balls," he's setting you up to ask, "Who's Igma?" Then, BAM! He hits you with, "Igma balls!" which sounds like "I'm a balls!" You probably didn't even know that the ball is technically a gonad in males, enclosed in the scrotum. Now, go back to drooling.