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

Instead of taking up the question directly, he gave Congress a chance to tweak Section 5’s formula for which states would be subject to preclearance.

From Slate • May 13, 2026

I spend a lot of time thinking about how to tweak everyday foods until they feel like slightly better versions of themselves.

From Salon • May 12, 2026

Loy said the coalition reached out to Bonta’s office and hopes to help tweak the bill.

From Los Angeles Times • May 4, 2026

The latest tweak freed OpenAI to sell AI tools outside of Microsoft’s Azure cloud-computing service and capped how much revenue it must share with Microsoft through 2030.

From The Wall Street Journal • Apr. 28, 2026

The problem, as it turned out, was not so much bad math as false hope: Colin had been trying to tweak the Theorem to make K-19's graph look like:

From "An Abundance of Katherines" by John Green

Related Words

• tease
• twist