from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To avoid or shirk, either by failing to perform, or by performing in a grossly insufficient, negligent, or superficial manner.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. choose not to do something, as out of fear of failing
Probably from cop a plea (Wiktionary)