A Wisconsin Water Hose occurs when you are fucking a girl from behind and she starts to shit diarrhea; you then cover her anus with the index finger making shit squirt out similar to a water hose.
Mallory had indian food and while getting pounded she started to shit diarrhea, so Daniel gave her a "Wisconsin Water Hose".
Semen-penis for short.
usually referred to a penis but the correct usage is a penis with sperm cells on the skin from outside (Mostly after sex by yourself)