dumbassly 

adverb. in a way that really makes you think, dude. that was a really idiotic way of doing something.

bro, did you really have to do that so dumbassly?
what?
you poured the milk before the cereal, dumbassly.

dumbassly by theguy_spykids3 December 27, 2017

Urban Dictionary Dumbass 

Someone who writes Urban Dictionary definitions about themselves, or people who they know, but who are not famous. Esp. when those definition is "*insert name here* is very cool and attractive."

Person 1: Hey! Jeremiah defined himself on Urban Dictionary!
Person 2: What an Urban Dictionary Dumbass...

Urban Dictionary Dumbass by Snowskeeper February 25, 2013

Professional Dumbass

Someone who does stupid shit so often, they somehow become proficient at doing it well

Stan is a professional dumbass, he keeps getting himself out of stupid situations

Professional Dumbass by Garlic S August 25, 2020

dumbass dad 

When ur dad is a asshole who is emptyheaded and has now real brains but acts like he knows about anything

I have a dumbass dad i think just knowing him makes me stupid

dumbass dad by .Pyro. March 1, 2018

dumbass people 

People whom do not have any common sense what so ever and continuously do stupid things over and over and over again never learning from their mistakes.

human beings are dumbass people.

dumbass people by sfol November 2, 2013

Dumbassfuck 

n. Someone, who by looking at them, it cannot be deciphered if that person is a dumbass or dumbfuck, so he or she is probably both of them.

Look at Jeremiah over there. He's walking around with his pants falling down and dancing like a fool. What a dumbassfuck!

Dumbassfuck by Fartface Jones November 30, 2011

dumbass 

a person/animal/other organism that does actions/things that are unfavorable and seen by others as stupid, it's also an insult to a person who is pea-brained.

bosco:10+10 is not twenty it don't have ten in it!
Damien: bosco u fucking dumbass it doesn't need to have that to be twenty
Ben:seriously bosco, did you skip 1st grade or something?

dumbass by a wild bandaid May 7, 2017