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

Explanation

When you tweak something, you pinch it or twist it. You may have a doting aunt who thinks you're still two years old and can't resist tweaking your nose every time she sees you. Tweak also means to adjust or fine-tune. When you finish writing a paper, it's a good idea to go back through one last time, to tweak it and make sure it's absolutely perfect. So when you tweak something or give something a tweak, you're making little adjustments, you’re not rewriting your paper or tossing it out and starting all over again.

Example Sentences

Eghbali also said Chelsea would target more experienced players in the summer and would "tweak the plan if it's not working", having built the youngest squad in the Premier League.

From BBC • Apr. 20, 2026

Via email, he said that repurchases’ popularity has led him to tweak his newsletter’s original methodology to favor stocks with healthy cash-flow yields.

From Barron's • Apr. 20, 2026

His experience, tactical understanding and positional versatility make him Guardiola's coach on the pitch, capable of adapting his role to ensure City can tweak their tactics game to game.

From BBC • Apr. 16, 2026

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

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