to cheat on a man with another woman, said of a woman; same-sex infidelity by a woman
Studies find that men are, on average, more tolerant of being femcucked than being a traditional cuckold.
Studies also find women to be much less tolerant of their partner's same-sex infidelity than men are.
switching back and forth between orally servicing male and female
At one point during the threesome, she did a bi switch-up, kneeling between them, going back and forth between sucking cock and eating pussy.
a euphemism for cumming inside of a woman
My girlfriend complains that I should take more initiative in loading the dishwasher; otherwise, they get crusty and need to be scrubbed all the more.
a threesome act; like a BJ switch-up but a man servicing two women instead of one woman servicing two men
He became a pussy sandwich, as he performed a pussy switch-up on two women who thought they were the ones taking advantage.
be bi; a rallying cry for bisexuals
I couldn't understand why I kept seeing attractive women wearing sweatshirts and t-shirts saying nothing more than '1938.' Then I typed it into a calculator and held it upside down.