noun
a person who uses methamphetamine or another stimulant in a way that causes erratic behavior
-
The software developer was known as a tweaker for constantly fine-tuning the code to improve performance.
-
My friend is a real tweaker when it comes to organizing his music collection.
-
I heard that guy is a tweaker, always looking for ways to hack into systems.
-
She's a tweaker when it comes to perfecting her makeup routine, always trying new products and techniques.