And if I blink they'll remove your snaps

from Eminem (Ft. Slaughterhouse & Yelawolf) – BET Shady 2.0 Cypher Lyrics on Rap Genius

It’s a reference to snapback hats. If he blinks (gives them the signal), the killers he knows will kill you. .

Also saying: If he blinks they’ll remove the snap(shot). Like how if someone blinks the picture is thrown away. Nice double entendre

To help improve the meaning of these lyrics, visit "BET Shady 2.0 Cypher" by Eminem (Ft. Slaughterhouse & Yelawolf) Lyrics and leave a comment on the lyrics box