Raining April 

Anal sex. This can also mean anal rape, and is a code for anal sex in public.

"Hey, Jimmy, guess what? I was raining april all over Kate last night!"

"I love to Rain April on people!"

"Hey, did you hear the news? Some guy got put in prison for Raining April on some people!"

Raining April by Whittsnake May 24, 2005