tweakverb/twiːk/

• 1

  To pinch and pull with a sudden jerk and twist; to twitch.

  • to tweak the nose.
• 2

  informalTo adjust slightly; to fine-tune.

  • If we tweak the colors towards blue, it will look more natural.
  • Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too.[…]But as a foundation for analysis it is highly subjective: it rests on difficult decisions about what counts as a territory, what counts as output and how to value it. Indeed, economists are still tweaking it.
• 3

  To tease, to annoy; to get under the skin of (someone, typically so as to irritate them, or by extension to enamor, frighten, etc).

  • Oh, he loved to tweak people and say things like "Hiya sweetums" to me because that was not exactly de rigueur in front of a bunch of strong feminists. He had this enormous sense of humor. I never knew what he was going to say.
  • I know what kinds of intervals and melodies tweak people—I know how to make people's skin crawl, how to make them shiver. I can't say it works on all listeners. There are some people, such as overly trained composers and theorists ...
• 4

  slangTo abuse methamphetamines, especially crystal meth.

• 5

  slangTo exhibit extreme nervousness, evasiveness when confronted by authorities, compulsiveness, erratic motion, excitability, etc, due to or mimicking the symptoms of methamphetamine abuse.

• 6

  slangTo be extremely confused; to have no clue what is happening.

  • Am I tweaking or does 2020 feel like 6 months ago?
  • If you didn't think that was a good halftime show you're actually tweaking
• 7

  engineeringgovernmentmilitaryFrom a catapult, to strike a target with a missile.

tweaknoun/twiːk/

• 1

  A sharp pinch or jerk; a twist or twitch.

  • a tweak of the nose
• 2

  A slight adjustment or modification.

  • He is running so many tweaks it is hard to remember how it looked originally.
• 3

  Trouble; distress; tweag.

• 4

  obsoleteslangA prostitute.

  • Thence to Bautree, as I came there, From the bushes near the lane, there Rush'd a tweak in gesture flanting With a leering eye, and wanton: But my flesh I did subdue it Fearing lest my purse should rue it.
• 5

  slangMethamphetamine.

• 6

  slangA single inhalation of cocaine.

• 7

  computingcryptographyengineeringAn additional input to a block cipher, used in conjunction with the key to select the permutation computed by the cipher.