Alright, listen up, you big dope. Explain bear here. This joke is simple, even you can get it. The first guy, the 'Comic,' calls the other guy, 'Gerald,' a virgin. Get it? Like he's never, you know... done the thing. Then Gerald tries to sound cool and says, 'Nah, women love me, I've been around.' But then the Comic drops the based truth bomb. He says Gerald looks like a nerd because of his name and glasses – calling him 'four eyes' and linking him to a fake place like 'FOUR EYED SPECCY INSTITUTION' to make fun of his glasses. And the punchline, the really crude part, is saying the only 'woman' his... uh... 'dick' has ever been inside is his own mother when he was born. It's a super harsh insult combining stereotypes about nerds being unpopular and a really messed-up image. You probably think 'four eyes' is a compliment, don't you? Bless your heart.