English slang originating in kent, generally taken to mean travelling far away from home on a seduction trip and then afterwards claiming the event never took place, and not talking to the girl/boy(victim) afterwards.
Also at events, generally a fling then ignoring contact afterwards or denying action took place.
"He still hasn't called back"
"Hmm, looks like you've been Ruffined"
"Yeah im off up London for a good Ruffin tonight"