Chum, v. i. [imp. p. p. Chummed p. pr. & vb. n. Chumming.] To occupy a chamber with another; as, to chum together at college. [U. S.]
chum
n : a close friend who accompanies his buddies in their
activities [syn: buddy, brother, crony, pal, sidekick]
[also: chumming, chummed]