Top Definition
a meth user who is really proud of him or herself and thinks no one can tell they're high and acts animated. they know everything.
"You better let squeek fix the lawnmower or he'll go twackstar on you."
by Crys Crystopherson January 31, 2009
One who emmulates silver or gold medal status, while under the influence of crystal meth.
Friend says to the other " And here I thought him being without sleep for the entire week would catch up to him" as her eyes follow his twack star performance.
by Aphrodite2010 June 09, 2010
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