twat flopper Share definition Flag A twat flopper is a homosexual female, otherwise known as a lesbian (term credited to Lane Brewer) Example: "Are you gonna take that chick home?" "Naw man, she's a twat flopper twat flopper by ragdolldearest March 15, 2015 0 0 Get merch Get the twat flopper mug. Buy Now — $32.95 See more merch