D defs.my
Entry 4 senses · 4 variants Webster, 1913

Bum

/(bŭm)/ · IPA /bʌm/
01 n. The buttock.
  1. 1.
    The buttock.[Low]
02 v. i. To make murmuring or humming sound.
imp. & p. p. bummed; p. pr. & vb. n. bumming
  1. 1.
    To make murmuring or humming sound.
Phrases & compounds
to bum around — to wander about idly or aimlessly.
03 v. t. To borrow without intention of returning; to cadge; as, to bum a cigarette; to bum a cup of coffee; -- usually with inexpensive items as th…
  1. 1.
    To borrow without intention of returning; to cadge; as, to bum a cigarette; to bum a cup of coffee; -- usually with inexpensive items as the object.[informal]
04 n. A humming noise.
  1. 1.
    A humming noise.