semen enemy 

Another name for a cock block.

I really want to get with Stacy, but her roomate Susan is such a semen enemy!

semen enemy by DenkenPuto October 17, 2010

semen enema 

The thing a dude gives you when he blows his load up your ass and you subsequently shit when he pulls his dick out.

Brad totally gave me a semen enema last night and I shit all over his white couch

semen enema by Noanalnancy November 22, 2016

seven ply enema 

when you're skateboarding and doing a flip trick or other critical maneuver and you land with the board standing straight up into your ass, sometimes it bleeds, thats why its called a seven ply enema.

dude, i was trying to kickflip the 10 stair and got a seven ply enema, it ruined my session.

seven ply enema by lgskater September 30, 2009