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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one who enjoys and excels in, when it comes to licking ass.
Holy hell, my girlfirend's tongue did a number on my ass. she's a..