1) sugar, caffeine, monster drinks, sugar, earl gray tea, amphetamine,
methamphetamine are examples of commonly used stimulants that can cause a person to be tweakin. They can become fast-moving, jittery and if on meth violently jumpy or shaky (trembling)
2) ADD/ADHD, natural high, sugar high, caffeine high can cause tweakin (hypetactivity) where you'll just be all over t he place moving fast.
when someone is hyperactive it doesnt mean they are
under the influence of
methamphetamine where meth high causes similar behaviour but is a different kind of hyper.