A mildly vulgar yet popular term for someone who you think is stupid. It is the combination of Dumb and Ass.
by TheSusWordNerd March 15, 2022
Get the Dumbassmug. by Glazys.com June 9, 2022
Get the dumbassmug. 
Get the Dumbassmug. by BozzoBoy October 27, 2021
Get the Rich dumbass bitchesmug. A classic, all-purpose insult for a stupid person that can be used many ways, this particular definition writer prefers to use it for people who do idiotic things that they should know better than to do, and which, due to their own stupidity, end up with them getting hurt, getting suckered out of their money or otherwise taken advantage of, or suffering other ill fortune. People who brought it on themselves.
Some people think the term originated with Beavis and Butt-head, but that's actually not true, that show just popularized the term. It's at least as old as Star Trek IV (1986), and probably older than that. While the show That '70s Show came out later, and is fictional, the character of Red Forman in that show was also known for using the term and so, if the show is an accurate depiction of the time, then people were using the term in the '70s as well.
Some people think the term originated with Beavis and Butt-head, but that's actually not true, that show just popularized the term. It's at least as old as Star Trek IV (1986), and probably older than that. While the show That '70s Show came out later, and is fictional, the character of Red Forman in that show was also known for using the term and so, if the show is an accurate depiction of the time, then people were using the term in the '70s as well.
I read an article about this dude who got drunk, put a lit firecracker in a beer bottle and shoved it up his rectum, and now he doesn't have an anus or a colon. What a dumbass.
by q359 July 24, 2023
Get the dumbassmug. My dumbass friend is right next to me while writing this a dumbass friend is usually a friend that's an ass and or dumb as hell so 9 times out of 10 you have dumbass friends.
A dumbass friend is a friend that's dumb and or ass.
Me: yo what's popping
Dumbass friend: pp poopoo funny "LAUGH OUT LOUD" so that is a dumbass friend.
Me: yo what's popping
Dumbass friend: pp poopoo funny "LAUGH OUT LOUD" so that is a dumbass friend.
by Cumrocket69420 July 16, 2022
Get the dumbass friendmug.