NOTE: a dingus is NOT a stupid person, because a dingus is someone who can make you laugh by doing stupid THINGS, but they are not stupid people. a stupid person is an idiot. idiot and dingus are different.
you say "dude, you're such a DINGUS"
b. Slang for penis.
"I don't chase my wife around naked in the house anymore. Last time I bruised my dingus."
"Keep it steady, dingus!"
"Yeah, like some dingus kids would actually beat me in an argument."
"Well no shit, dingus. What did you expect? Of course that Prostitute you did had one or more STD's. Did you see how she looked?