Cumundum 

A jubilant amount of semen around one's rectal cavity

Dude, last night i gave my girl the biggest Cumundum.

Cumundum by Michael Clementino November 27, 2009

cumundrum 

Any sort of issues related to and/or involving semen. This can include cum in the face/hair, the inability to cum, cumming too fast, or the ever-dreaded cum in the pants.

"So we were hooking up last night, and he came in his pants." That's a real cumundrum!

cumundrum by 123sober October 7, 2010

Cumundrum 

The point where a male is about to ejaculate while having sex but isn't sure if he wants to because the sex is so good and he doesn't want it to end.

I was having sex last night and didn't want it to end but I wanted to cum so bad, I hate being stuck in the middle of such a cumundrum.

Cumundrum by dtommd May 30, 2015

Cumundrum 

The conflicting feelings of not knowing where to deposit your load.

She told me to cum on her ass, but her tits were amazing. It was a total cumundrum.

Cumundrum by Sub 20 August 21, 2013