tweaking >> twiːk
Definition: [verb] twist or pull (something) sharply.
Example: he tweaked the boy's ear
Definition: [verb] improve (a mechanism or system) by making fine adjustments to it.
Example: engineers tweak the car's operating systems during the race
Definition: [verb] become or cause to become agitated or excited, typically from taking amphetamines or another stimulant.
Example: I just about went crazy yesterday—I was totally tweaking out