Bottle fucked is a fetish for people who like having bottles stock up their ass such as a shampoo bottle the conditioner bottle pop bottle and most commonly a hairspray bottle
When a man screws a woman or man in the butt then ejaculates while the person being screwed farts at the same time causing the penis & sperm to be forced out looking like a bottle rocket shooting off.
Guy 1: "yo let's get some drinks man"
Guy 2:"aight let's go, I'm boutta get a bottle of drunk"
Guy1: "wtf is that man?"
Guy2: "that strong ass drink bro"
Guy 1: "ayyeeeeeeee"