22
Using your index and middle finger to squeeze someone's nipple; "the power of two becoming one"; can add "power" as a prefix to denote hard or rough; can indicate holidays (e.g., Merry Tweaksmas; Happy Tweaksgiving; St. Patweak's Day)
"It's time for your tweaking--give up those tender nipple buds!"
"We wish you a Merry Tweaksmas and a Happy New Tweak Year!"
"Okay, you can tweak me, but no power tweaks. Got it?"
by Freak Nastay February 25, 2003
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23
to fuck with
"tweak with my squad and we'll catch a body"
by just sumbody December 05, 2014
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24
v- to tweak
to be extra twitchy, secretive, giggly while under the influence of weed, pot, marijuana
to have the tell-tale signs of being high (squinty eyes, blood-shot eyes)
"Yo after taking those five rips off the bong, I was totally tweaking out. I was pulling my hoodie all the way down, I put sunglasses on, and my eyes were BARELY open"
by bnell9002 November 10, 2005
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25
by tweak July 18, 2003
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26
Computers: To slghtly alter various settings and configurations for customisation and improving performance.
You can get better framerates in the game if you tweak some settings.
by generic January 21, 2004
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27

1. to adjust slightly

2. to adjust a computer program slightly
They tweaked the game to fix a glitch.
by Light Joker August 25, 2007
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28
To adjust or fine tune things, to personalise an object and make it better to suit one's liking
Holly was eager to tweak her sister's white canvas slip-ons with rainbow unicorns because she knew they were her sister's favourite mythical creatures.
by fln September 23, 2013
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