nasty, horrible, disgusting
urgh, i had to open the window, cuz the car smelt gacky as fuck
από mikepacker88 14 Οκτώβριος 2007
a nickname for someone that does meth. from the word "gacked"
hey gacky, are you gacked ouy today?
από S. 22nd street 18 Οκτώβριος 2006