Verb; slang for "to
orgasm."
Origin, 2017, United States. First said by Leigh
Daniel Avidan of Game Grumps, Ninja Sex
Party, and Starbomb while playing Sonic Unleashed.
"
Well, you know, I wasn't planning on having little
Johnny, but I goofed inside of my
girlfriend, so here we are."
"Aw, I'm gonna goof all over you!"