Bum

Pronunciation: bŭm

v. i.

[imp. & p. p. bummed ( ); p. pr. & vb. n. bumming ( ).]

to bum around
to wander about idly or aimlessly.

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 the object.

A humming noise.

Noun	1.	bum - a person who is deemed to be despicable or contemptible; "only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes!"; "the British call a contemptible person a `git'" Synonyms: dirty dog, git, lowlife, puke, rotter, scum bag, skunk, so-and-so, stinker, stinkpot, crumb, rat
	2.	bum - a disreputable vagrant; "a homeless tramp"; "he tried to help the really down-and-out bums" Synonyms: hobo, tramp
	3.	bum - person who does no work; "a lazy bum" Synonyms: do-nothing, idler, layabout, loafer
	4.	bum - the fleshy part of the human body that you sit on; "he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?" Synonyms: arse, ass, behind, buns, buttocks, hind end, hindquarters, keister, nates, posterior, prat, derriere, fanny, rear end, tooshie, tush, seat, fundament, backside, bottom, butt, rump, stern, tail end, tail, rear, can
Verb	1.	bum - ask for and get free; be a parasite Synonyms: cadge, grub, mooch, sponge
	2.	bum - be lazy or idle; "Her son is just bumming around all day" Synonyms: arse about, arse around, bum about, bum around, frig around, fuck off, loaf, loll around, lounge about, lounge around, waste one's time, loll
Adj.	1.	bum - of very poor quality Synonyms: cheesy, chintzy, crummy, punk, tinny, sleazy, cheap

1.		bum - 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.		bum - 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.		bum - 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 Usage: now uncommon, largely superseded by v. tune (and tweak, hack), though none of these exactly capture sense
4.		bum - All these uses are rare in Commonwealth hackish, because in the parent dialects of English "bum" is a rude synonym for "buttocks".

Arab, Bowery bum, amiss, arse, ass, backside, bad, barfy, bat around, beach bum, beachcomber, beg, beggarly fellow, bender, birr, blighter, bo, bombilate, bombinate, boom, booze, boozehound, bottle sucker, bottom, brannigan, budmash, bumble, bummer, burr, bust, butt, buzz, cadge, cadger, caitiff, can, carouse, cheeks, cheesy, count ties, crappy, creepy, crummy, derelict, derriere, devil, dirty, dissatisfactory, divagate, do-nothing, dogie, dolittle, drift, drone, drunk, drunkard, elbow bender, faineant, fanny, flit, floater, gad, gad about, gallivant, gamin, gamine, ginhound, go about, go the rounds, godawful, goldbrick, good-for-naught, good-for-nothing, goof off, goshawful, grim, guttersnipe, hairy, hind end, hit, hit the road, hit the trail, hit up, homeless waif, hooch hound, hum, human wreck, icky, jag, jaunt, keister, knock about, knock around, landloper, laze, lazy, lazybones, lazzarone, loaf, loiter, loll, losel, lounge, lowlife, lush, lusher, mauvais sujet, mean wretch, meander, mendicant, mendicant friar, mendicant order, mooch, moocher, mucker, mudlark, no-good, nomadize, panhandle, panhandler, pass the hat, pauvre diable, peregrinate, pererrate, piker, pilgarlic, poor, poor creature, poor devil, posterior, prat, prowl, punk, purr, putrid, ragamuffin, ragman, ragpicker, ramble, range, roam, rotten, rounder, rove, rum hound, rummy, rump, run about, rusty-dusty, sad case, sad sack, saunter, schnorrer, scrounge, scrounger, shitty, ski bum, skid-row bum, slouch, slug, slugabed, soak, souse, sponge, stern, stew, stiff, stinking, stinky, straggle, stray, street Arab, street arab, street urchin, stroll, strum, sundowner, surf bum, swagman, swagsman, swillbelly, swillbowl, swillpot, tail, tatterdemalion, tennis bum, thrum, touch, traipse, tramp, truant, tuchis, turnpiker, tush, tushy, unsatisfactory, up, urchin, vag, vagabond, vagabondize, vagrant, vaurien, vomity, waif, waifs and strays, walk the tracks, wander, wassail, wastrel, wayfare, whir, whiz, wino, worthless fellow, wrong, yecchy

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