by Caroline R June 17, 2008
A portmanteau of the words Dumbass, referring to an idiot, and Bastard, referring to someone with bad morals.
Boss: Hey, I need you to come in tomorrow, even though it's your day off.
Larry: Okay. See you then. *Hangs up phone* Dumbasstard.
Larry: Okay. See you then. *Hangs up phone* Dumbasstard.
by MadMark255 December 13, 2020