from Fr. assimilation of en- to following labial; also from L. ex-, assimilated to following -m-. Also a prefix used to form verbs from adjectives and nouns.
'em
M.E., now taken as an abbreviation of them, but originally a form of hem, dative and accusative of the third person plural pronoun.
n. an empty liquor bottle. (See also knock (so's) block off.) : Put your ems in the garbage, not on the floor.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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