When a person is high and "tripping out", possibly twitching or making crazy faces they are labelled as "gookin" or "gookin out". After repeatedly telling the person they are "gookin out" they begin to "gook" further.
meaning messing around.. most of the definitions here but not mostly like the top rated one.... your not messing up or fucking up... that is considered a fail... you gook not fail.....
Niggas from the bay are gookers/ gookin around.... example of not gookin.... Nigga is gookin in the bathroom.... it can be used like that but if you were to use the other defintion of messin up.... how the hell can you mess-up in the bathroom.. unless you shit your pants
"gookin" or gookin out is a slang word used to basically tell some one they messing up or acting a fool or tripping out originating of the streets of miami florida