Two drunks are sitting side by side in a bar.
One of the drunks goes to the bathroom but neglects to button up his fly when he’s finished.
He staggers back to the bar, sits on a bar stool, and his penis flops out on the bartop.
The other drunk yells, ‘Snake!’ and hits the penis with a bottle.
The first drunk shouts, ‘Hit it again!
It just bit me!’
This joke is included in the Black Book of Jokes. You can order it from here.