dumbass
noun
dumb·ass ˈdəm-ˌas 
variants or dumb-ass
plural dumbasses or dumb-asses
informal + vulgar
: a foolish or stupid person : idiot
acting like a total dumbass
dumbass adjective
or dumb-ass
informal + vulgar This is a dumb-ass picture about dumb-ass men. 
Anthony Lane
Anthony Lane 
Word History
Etymology
dumb entry 1 + ass entry 3
First Known Use
1935, in the meaning defined above
- money of necessity
- money order
- money orders
- money pit
- money plant
- money player
- money riding
- money scrivener
- money shot
- money spider
- money supply
- money talks
- money to burn
- money weight
- money-back
- money-back guarantee
- book token
- book tripe
- book truck
- book value
- book van
- book wagon
- book word
- book wrapper
- book-fold