Basaucey Share definition Flag Verb. Sticking your hand down your pants, farting directly on it, and slapping someone with your farty palm. Mitch fell asleep at the Berlin Philharmonic and Kate used the opportunity to basaucey his face. Basaucey by frightenedrabbit May 12, 2011 0 0 Get merch Get the Basaucey mug. Buy Now — $32.95 See more merch