to stink, to smell bad
No lo sé, pero va a apestar.
I don't know, but it's going to suck.
— Ágora (2009)
Porque si el señor hace eso, la cosa va a apestar.
Because if the man does that, things are going to stink.
— Tropa de élite 2 (2010)
Andando, deje de apestar esto.
Come on, stop messing this up.
— Игла (1989)
Y digo de apestar fuerte.
And I mean really stink.