Piss Backwards
To retract what you have previously said. Used by the Police (unofficially) to describe the actions of a victim - usually of domestic assault, who initially complains resultig on the offender being arrested, but then changes their mind and welcomes their tormentor back with open arms.
"Get her statement now, before she has chance to piss backwards"
Backwards pissing
Two men stick the end of the same straw up there dick hole while one guy pisses into the other guys dick
“OMG LOOK THOSE TWO HOMELESS MEN ARE BACKWARDS PISSING IN THAT ALLEY OVER THERE!!!”