a person who is addicted to meth...(drug)
that guy smoking that shit on the chair over their is a tweaker!
by lindsey_57 July 24, 2006
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Them : You’re a tweaker.
You: what is a tweaker ....
by Nosluts0187 December 25, 2019
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A 'speed'/'crystalmeth' freak.
Tweaker's are 'tripped out' addicts who live for 'gas'/'ice' and party for days with no concept of time or the outside world.
"Val Kilmer play's his best role ever as a hardcore tweaker, a crystalmeth freak, in a great movie called 'The Salton Sea'."
by Diego August 18, 2003
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A person who uses meth and staying awake for days at a time thinks their focused on there project usually something they think they can repair but in reallity they end up breaking it so the parts end up in a box with all the other tweaker parts
He has been up for days tweaking on electronic items , and hasnt fixed any of them , all he has now is a bunch of parts, he is such a tweaker.
by Kimberly Delgado July 10, 2006
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Typically someone who smokes/snorts/does meth. Some people who have tweaker habits but don't do meth may also be referred to as a tweaker. People who are constantly touching their face, or looking around like they think someone is watching. A tweaker can typically be one of two kinds. Either very loud, weird, unusually happy about everything (or sometimes even angry) and is that "in your face" kind of person. Or that guy sitting at the back of the bus with his hood on staring at everyone nervously because he thinks they all know he's high.
A tweaker downtown today tried to sell me meth! Can you believe that?
by LiaMiaLoshia December 11, 2014
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someone who abuses methamphatamine.

usually skinny because they dont eat.
dark circles under their eyes because they dont sleep.
can harldy stand because most of their blood viens have collpased from constant injecting,

they transform themselves into a hermit-like state and keep to themselves while trying to have a normal life.
kid 1: i think that jon is using meth.
Kid2: yeah i definatly think he is a tweaker
by lovebabefor April 9, 2009
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Tweaker is tayisa, someone who's a hoe
Look at that hoe Tayisa, she's a tweaker
by Angie08 May 9, 2017
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