verb. To stand over a naked girl while you're completely naked and let your drool swing from side to side off your tongue until it lands in the girl's vagina while you both meow.
During class the other day, my teacher asked me to stay after class to talk to her about something. So after the bell rang I stayed. Once everyone had left, she closed the door, turned toward me, and grabbed me by the clasper (that's shark-talk for penis) which turned immediately hard. Then, she looked me straight in the eye and said, "I want a cat-shower!" At this point had to pretend to tie my shoe to hide my raging boner and then I proceeded to give her a cat-shower, completely naked and meowing the whole time.
- Hey man! How was that Filipino hooker last night?
- Oh man it was fucking crazy! I cat-showered her so hard Bro!
- Nice! Were her pussy lips spread with clamps?
- Of course! Otherwise it wouldn't have been a cat-shower!