Definition of

Bum

  1. (noun, body) the fleshy part of the human body that you sit on
    are you going to sit on your fanny and do nothing?
  2. (noun, person) person who does no work
  3. (noun, person) a person who is deemed to be despicable or contemptible
    kill the rat
    throw the bum out
    you cowardly little pukes!
    the British call a contemptible person a `git'
  4. (noun, person) a disreputable vagrant
    he tried to help the really down-and-out bums
  5. (verb, possession) ask for and get free; be a parasite
  6. (verb, stative) be lazy or idle
  7. (adj, all) of very poor quality; flimsy

via WordNet, Princeton University

Origin of the word Bum

  1. "buttocks," late 14c., "probably onomatopoeic, to be compared with other words of similar sound and with the general sense of 'protuberance, swelling.' " [OED] more
  2. "dissolute loafer, tramp," 1864, Amer.Eng., from bummer "loafer, idle person" (1855), possibly an extension of the British word for "backside" (similar development took place in Scotland, 1540), but more prob. from Ger. slang bummler "loafer," from bummeln "go slowly, waste time." Bum first appears in a Ger.-Amer. context, and bummer was popul… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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