(v 1) When a
female interferes* with someone, typically a male who is getting acquainted with, conversing with, or hooking up with a member of the opposite sex.
(v 2) any action that impedes or stalls another's "game", "
mack", or "pimp manuver"
(n) any
female one who prevents another person from getting to know someone.
*Often intentionally
(1) Jim was talking to Lisa. That is until Jims little
sister twat blocked him when she asked why he needed two girlfriends.
(2) My ex-
wife twat blocks me every chance she gets. I hate her.