left butt cheek Share definition Flag When someone is being a girl being a weirdo who is usually a (laura). The left butt cheek is usually bullying a (Bradley) Wow stop being a left butt cheek . left butt cheek by Badassbro March 21, 2016 0 0 Get merch Get the left butt cheek mug. Buy Now — $32.95 See more merch