cock-blocking

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!
Farlex Dictionary of Idioms.

cock-blocking

mod. [someone or something] interfering with a man’s activities with a woman. You’re just a cock-blocking playa-hata.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • cock socket
  • cocksocket
  • cock block
  • cockblocking
  • suck cock
  • horse cock
  • cock
  • Suck my cock!
  • all to cock
  • drain the dragon
References in periodicals archive
The mantra itself is annoying (as if there were only one, monolithic version of 2018), but the film's determination to fight the good fight in the midst of a cock-blocking comedy is rather sweet.
Film review: Blockers **
And after days of being secluded from the other bros by the tyrants (Ewan Bowman and Joe Hammeke) who were cock-blocking the "good seats," the trio had but two options: either be crushed by the oppressive climate or cling together like true survivors and overcome the situation.
World's best road trip: Eswic out west