tweak

American  

[tweek] / twik /

verb (used with object)

1. to pinch and pull with a jerk and twist.

   She playfully tweaked his ear.

   I tweaked my bowtie again, but it stayed stubbornly crooked.

2. to pull or pinch the nose of, especially gently.

   He leaned over the stroller and tweaked the baby affectionately.

3. to make a minor adjustment to.

   Bad hardware can't be fixed by tweaking the software.

4. to annoy, tease, or make fun of.

   How much of her “dumb blonde” image was actually a brilliant performer tweaking the stuffed shirts?

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verb (used without object)

1. Slang.

   1. to use methamphetamine, cocaine, or other stimulant drugs.

      He'll try to avoid taking a drug test if he's been tweaking and toking.

   2. to engage in wildly excited or agitated behavior under the influence of such drugs (usually followed byout ).

      If I'd seen someone else acting this way I would have thought they were tweaking on meth.

noun

1. an act or instance of tweaking; a sharp, twisting pull or jerk.

   "Thought it was you," she said, greeting him with a tweak on the nose.

2. a minor adjustment.

   Here are 12 simple tweaks to speed up your computer.

verb phrase

1. tweak out

   1. to extract by pinching and pulling with a jerk, as with tweezers.

      In a twinkling she had tweaked out a dozen hairs and put them in an evidence bag.

   2. to remove (defects or unwanted features) by means of a minor adjustment.

      You have a couple of bugs to tweak out from your website, but you’re on the right track.

   3. to effect (an improvement) by means of minor adjustments.

      They were able to tweak out some pretty hefty performance improvements to the sound system.

   4. to optimize in this way.

      My operating system isn’t tweaked out the way I like, but it's running, stable enough, and ready for use.

   5. Slang. to engage in wildly excited or agitated behavior under the influence of methamphetamine, cocaine, or other stimulant drugs.

      She grabbed a knife and waved it around while tweaking out on crystal meth.

      He showed up shirtless and barefoot, tweaked out on cocaine.

   6. Slang. to make or become wildly excited or agitated; freak (someone) out.

      I decided not to tell my kids what I’d done so they wouldn't tweak out about it.

tweak British  

/ twiːk /

verb

1. to twist, jerk, or pinch with a sharp or sudden movement

   to tweak someone's nose

2. slang motor racing to tune (a car or engine) for peak performance

3. informal to make a minor alteration

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noun

1. an instance of tweaking

2. informal a minor alteration

Other Word Forms

• tweaker noun
• tweaky adjective

Etymology

Origin of tweak

First recorded in 1595–1605; akin to twitch

Example Sentences

But his favorite sport hasn’t looked the same since a minor tweak in Major League Baseball’s rulebook before the 2019 season loosened the color restrictions on player cleats.

From The Wall Street Journal • Mar. 14, 2026

He could easily have made up a muscle strain or tweak.

From BBC • Feb. 26, 2026

At one point, he even appeared to tweak his injured knee, forcing him to sit for a long stretch.

From Los Angeles Times • Feb. 19, 2026

The math is complicated, so Choi recently made a spreadsheet, intended as an educational tool, where people can plug in their financial specifics, tweak the assumptions and see what the formula spits out.

From The Wall Street Journal • Feb. 19, 2026

She’d hacked into the Kinloch computer and every so often would tweak some of its code.

From "City Spies" by James Ponti

Related Words

• tease
• twist