1 definition by hoist85
An insult. More so to the person saying it than the one receiving, because they lack the actual intelligence to insult you with something creative.
Fred: Hey you jack hole why don't you take your thumb out of your ass and do something with your life.
Shawna: Well uhhhhh... you doomby.
Shawna: Well uhhhhh... you doomby.
by hoist85 August 17, 2011