What is "cagers"

Usage examples of "cagers".

And, at last, Lillehammer had come to the conclusion that he had been saved from the jaws of death for one purpose: to find his cagers and destroy them, as they had destroyed him.

But noth­ing really changed: the LHS cagers didn't do much better than the LHS gridiron warriors - the only bright spot was Lenny Barongg, a three-sport man whose major one was basketball.