The act of urination from the penetrating party whilst having anal sex. Resulting in a wet anus and much embarrassment.
"I was really desperate for a slash whilst we were at it anal last night, so I gave her the once over on an austrian rinse cycle."
Like sex, except for pansies who pick flowers and enjoy Chris De Burgh.
Dan: "Me and Sandra made love last night, it was so romantic, undoubtedly the most special night of my life."
*MOCKING LAUGHTER FOR AROUND 20 MINUTES*
Friend 1: "Go home man, just go home."
Friend 2: "Making Love? What a Jesse"