An exceptional dullard, though not to the level of Henry Dumbass.
Then the contestant, reacting to the audience's laughter after she identified the author of The Three Musketeers as "Alexander Dumbass", said, "No...wait... Henry Dumbass!" -- from the Pardon My Blooper album, 1957.
When someone isn't actually a dumbass but they act as one due to a lack of care on the opinions other people might have on them
I love that dude's shitposts, he radiates such amazing dumbass energy
Someone whose intelligence, or lack thereof, is seasonal and inconsistent. (See also perennial dumbass.)
"Sometimes they can be really smart, but other times they say the dumbest shit, you never know what you're gonna get. God, they are such a deciduous dumbass."
Someone who's an unrelenting, year-round dumbass. (See also deciduous dumbass.)
"Yeah, she just consistently makes the most moronic decisions, she's a perennial dumbass."
One who displays actions of extreme drunken dumbassness and or bitch assness while inebriated, especially in such settings as a fraternity house.
Drunken dumbass-Allie Sargeant
Runs around please in Jesus mouth and doesn't smoke weed
Isaiah the dumbass
Another word for the lottery, as coined by bill nye and idubbbz. It essentially forces poor people who don't know enough about math, pay a sum of money and get nothing in return.
darren: "You hear about that hundred million dollar end of year lottery? The ticket line went for miles.."
davo: "that's what you call the mandatory dumbass tax"