What is G.k.o.?
1.
"Guitar Knock(ed)-Out"
Used to describe any action or event that leads to the overuse of a guitar, resulting in soreness in the arms/fingers and mental/physical incapacitation.
When he got his new amp, he got G.K.O.'ed because he practiced too much.
I needed to learn so many new songs for my debut, I was G.K.O.'ed.
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to insert your penis on the zipper and zip up, causing massive devastation to your penis.
Dude, I was bored one night, and saw my zippe..