Very vague description of a random object that doesn't exist.
Guy 1 - Hello guy 2! Yesterday I messed with my prungus and it splorgoed everywhere. It was kinda cool!
Guy 2 - What the fuck is a prungus dude.
Guy 1 - Oh, you know.
Guy 2 - No dude, we're not doing this again. Stop making up these random fucking words.