To become in the state of mind as a goon or thug and violently thrash someone or an environment
If Katie leaves again I swear Imma goon out.
by weechair May 19, 2016
A point during masturbation where you start to lose control and revert to a Neanderthal goon tard, often after hitting poppers or smoking an insane amount of weed. The pleasure becomes so intense that your eyes roll back, your mouth opens into an "O", and you're either panting, grunting, making monkeybate sounds or babbling about how good your penis feels.
Once I took that last hit of poppers I was gooned out bro.
by Ultbator August 20, 2019
energized from listening to rap music for a long period of time; state where one feels like they could be a rapper regardless of race or ethnicity
"Yo every song on that meek mill mixtape goes hard"
"I know I'm totally gooned out after listening to the whole thing"
by DA BO$$ October 25, 2009
Originated in Florida, commonly used in Opa Locka, probably the roughest/Hoodest part of the Miami/Dade County area:

real hood niggas chillin in a whip about to do some shit
i.e. driveby sell shit, buy shit
car fulla choppa's and everybody quiet, car fulla goons and everybody certified...
These Goons out lurking-plies (Goons out lurkin)
by $K-Rich$ November 15, 2007