serrarenee Share definition Flag An old slang from the late 80's referring to when a girl pees on her boyfriend while sleeping. "i thought no one was home until i walked in the guest room and saw Brittany pull a serrarenee on Mike!!!" serrarenee by Willbert Pee Pa August 2, 2008 0 0 Get merch Get the serrarenee mug. Buy Now — $32.95 See more merch