(US, slang, historical) A member of the Women's Army Corps, the women's branch of the United States Army from 1942-1978.

(US, military, historical) Initialism of Women's Army Corps.

A member of the Women's Army Corps.

plural of WAC

plural of Wac

Zany; eccentric.

Alternative form of wacke

(originally African-American Vernacular, slang) Annoyingly or disappointingly bad, in various senses; lousy, cringy, uncool, messed up.

An eccentric; an oddball; a weirdo. / (dated, disco-era drug slang) PCP, phencyclidine (as also whack).

(UK, Liverpudlian) A friendly term of address.