asslammer

Assslammer, to "slam" "ass", referring to homosexual intercourse, but used as an insult. First used as a school insult after people got wind of "shitstabber". They then began making up their own ignorantly sexist insults.
I first heard this about a year ago, and as others have heard this it is now spreading across areas soon it may have spread completely if it hasn't already. (Mainly among townies yes the yobs who wear tracksuits all day)