When jizz dries on one's dick tip from beating off the night before. When they wake up the next morning and try to piss, it comes out in two directions like a viper and showers the walls and floors.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

After sex, cum dries in the end of a man's schlong. When he tries to pee, it comes out in two streams like a viper's tongue. It usually happens after a night of drinking.