Definitions by TNT.TNT

Jammer

A large line of cocaine usually forced on to another by way of peer pressure, usually from a close friend. Always sniffed as a line, never as a bump and its size is always too large for what your friend thinks you can handle. The next day, the two friends usually talk about the big jammers taken the night before.

(peer-pressuring best friend) "Come on bro, do a big jammer."

(you) "No way, man."

:somehow you wind up taking multiple jammers:
(the next day)

"so how about those jammers last night!"

Jammer by TNT.TNT May 11, 2014