cockblocking

cock block

rude slang To interfere with or prevent a man from having a sexual encounter. That girl was totally into me, until you guys came along and cock blocked me!
See also: block, cock

cock-blocking

vulgar slang Interfering with or preventing a male from having a sexual encounter. "Cock" is a slang term for a penis. That girl was totally into me, until you cock-blocking fools came along and ruined it!

cock-blocking

mod. [someone or something] interfering with a man’s activities with a woman. You’re just a cock-blocking playa-hata.
References in periodicals archive ?
As I became aware that two lovebirds were exchanging passionate kisses in the same dark corner in which the building's electric meters were located, I walked faster, in order to preclude any detrimental cockblocking effects.