tweak

v. pinch or pull with a jerk; pluck sharply; administer fine adjustments (to a mechanism, etc.); tease

n. act of pinching or pulling with a jerk; sharp pluck; action of administering fine adjustments (to a mechanism, etc.); teasing joke, teasing action

Tweak or tweaker can refer to:Tweak (band)Tweaker (band)Tweaking (behavior)Tweak (programming environment)Tweaking, the act of making subtle improvements to machines, especially a computerTweak UITweakbenchTweakers.netTweakVistaTweek Tweak, a character from the animated television series South ParkTweak (KI Technician)
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Noun
1. a squeeze with the fingers
(synonym) pinch
(hypernym) squeeze, squeezing
(derivation) pluck, pull off, pick off
Verb
1. pinch or squeeze sharply
(hypernym) pinch, squeeze, twinge, tweet, nip, twitch
(derivation) pinch
2. pull or pull out sharply; "pluck the flowers off the bush"
(synonym) pluck, pull off, pick off
(hypernym) pull, draw, force
(hyponym) tweeze
(verb-group) draw off, draw away, pull off
(derivation) pinch
3. adjust finely; "fine-tune the engine"
(synonym) fine-tune
(hypernym) tune, tune up

(v. t.)
To pinch and pull with a sudden jerk and twist; to twitch; as, to tweak the nose.
  

(n.)
Trouble; distress; tweag.
  

(n.)
A sharp pinch or jerk; a twist or twitch; as, a tweak of the nose.
  

(n.)
A prostitute.
  

1. To change slightly, usually in reference to a value. Also used synonymously with twiddle. If a program is almost correct, rather than figure out the precise problem you might just keep tweaking it until it works. See frobnicate and fudge factor; also see shotgun debugging.
2. To tune or bum a program; preferred usage in the UK.
[Jargon File]