You spelt it wrong DUMBASS!!!
It is not "dumbas" it's 'dumbass' silly!
by Not your problem November 25, 2006
Noun: Someone with such extremely low intelligence that they are no longer dumb, they are dumba. The plural dumba dumba. Derived from dumb.
For directions it's Tom Tom, not Dumba Dumba.
by A_shley July 10, 2006