crack block

When a person (intentionally or unintentionally) says or does something that blocks the acquisition of crack by another.

Can also be used for any illegal drug.

See also, cockblock

Hobo #1:
Yo! Hey Benny! Whatchoo gonna spend that money on?!

Hobo #2:
(panhandling on street corner) Aw, y'know, just--

Hobo #1:
YOU GONNA SPEND IT ON CRACK?

Hobo #2:
What? Dude, shut UP!

Hobo #1:
You gonna spend it on HEROIN? METH?

Hobo #2:
Aw snap. I do believe I was just crack blocked.