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What (who) is bum - definition
WIKIMEDIA DISAMBIGUATION PAGE
Bum (disambiguation); Bums; BUM
bum
1. To make highly efficient, either in time or space, often at
the expense of clarity. "I managed to bum three more
instructions out of that code." "I spent half the night
bumming the interrupt code." In elder days, John McCarthy
(inventor of Lisp) used to compare some efficiency-obsessed
hackers among his students to "ski bums"; thus, optimisation
became "program bumming", and eventually just "bumming".
2. To squeeze out excess; to remove something in order to
improve whatever it was removed from (without changing
function; this distinguishes the process from a
featurectomy).
3. A small change to an algorithm, program, or hardware
device to make it more efficient. "This hardware bum makes
the jump instruction faster."
Usage: now uncommon, largely superseded by v. tune (and
tweak, hack), though none of these exactly capture sense
2. All these uses are rare in Commonwealth hackish, because
in the parent dialects of English "bum" is a rude synonym for
"buttocks".
[Jargon File ]
bum
(bums, bumming, bummed)
1.
Someone's bum is the part of their body which they sit on. (BRIT INFORMAL, RUDE)
= bottom
N-COUNT: poss N
2.
A bum is a person who has no permanent home or job and who gets money by working occasionally or by asking people for money. (AM INFORMAL)
N-COUNT
3.
If someone refers to another person as a bum, they think that person is worthless or irresponsible. (INFORMAL)
You're all a bunch of bums.
N-COUNT [disapproval]
4.
Some people use bum to describe a situation that they find unpleasant or annoying. (INFORMAL)
He knows you're getting a bum deal.
ADJ: ADJ n
5.
If you bum something off someone, you ask them for it and they give it to you. (INFORMAL)
Mind if I bum a cigarette?
VERB: V n
6.
If you bum around, you go from place to place without any particular destination, either for enjoyment or because you have nothing else to do. (INFORMAL)
I think they're just bumming around at the moment, not doing a lot...
She went off to bum round the world with a boyfriend.
VERB: V around, V round n
7.
see also beach bum
Bum
·noun A humming noise.
II. Bum ·noun The Buttock.
III. Bum (·vi) To make murmuring or humming sound.
Examples of use of bum
1. "There is an old saying: Bum kills bum, who cares.
2. This time, you go and – ‘Huckabee‘s a bum, Huckabee‘s a bum, Huckabee‘s a bum, Huckabee‘s a bum.‘ My wife could‘ve told you that and saved the postage,‘‘ he said, to laughter.
3. To me it‘s about having charisma, not a great bum.
4. Anil: See earlier I would bum one or two cigarettes...
5. I‘d shaved my bum fluff in expectation of that kiss.