2 definitions by scarredshadow

cumback

When you're wanking over porn and about to cum and your mum walks in and you have to hold it in.

*Tom cums on the wall*

toms hot mom: Tom why didn't you have a cumback?

by scarredshadow March 9, 2008

Punctuation to be used when you realize you're f*cked or when something very unexpected happens. Halway between a question and exclamation.

Guy: Barack Obama is gay
Guy 2: !?

Guy: New Zealand isn't part of Australia!?

Guy: You're pregnant!?

by scarredshadow March 11, 2008