a term used in northern ireland to describe when an ejaculation has occured over someone else's bum.
ur ma has a sticky bum
by Angles May 8, 2008
John: "Hey Fred, how did the date go last night?"
Fred: "It went Great! It finished with a sticky toffee bumming!"
Fred: "It went Great! It finished with a sticky toffee bumming!"
by ChocolateBlorange December 2, 2020