dumbass

/ˈdʌmˌæs/
adjective
  1. Stupid or foolish (informal, mildly offensive).
    • Who came up with this dumbass plan?
    • I made a dumbass mistake and forgot the meeting time.
    • That was a dumbass thing to say to your boss.
Antonyms
noun
  1. A person who is stupid or does something foolish (informal, mildly offensive).
    • He locked his keys in the car again—what a dumbass.
    • Some dumbass left the milk out on the counter all night.
    • Don't be a dumbass; wear your helmet when you ride your bike.
Antonyms
What does "dumbass" mean? | whatsthatwordmean | whatsthatwordmean