Goon Splash Share definition Flag Goon splash is the slang term of the male ejaculate/semen. Usually an exaggeration of a normal/human-like amount. “i goon splashed all over her face, man. It was like the floors of Alaskan countryside!” Goon Splash by JBGoonBox September 16, 2025 0 0 Get merch Get the Goon Splash mug. Buy Now — $32.95 See more merch