DumbJack 

A person who refuses to taste food or specifically meat, before drowning it in Ketchup.

An ignorant individual who will not try anything new or refuses to try a new concept.

An annoying individual who stalks females.

Who' this dumbjack? (A ridiculous looking individual who is assumed to be a stalker.)

Can you please pass the Ketchup? (This statement is in the first person, where the individual is at a establishment where fine meats are served in which case a pointless amount of ketchup is dumped onto ones main course.)

Oh my god, is dumbjack doing it again? (Third person statement where the same situation is as above but from anothers perspective.

DumbJack by Getzimus December 26, 2007

dumbwack 

adj. Very played out, or stupid. Gay, not worth your time.

1. Yo, that shit is dumbwack son.
2. I was gonna go to the movies, but that dumbwack bitch bailed out on me.
3. This homework is dumbwack for true.

dumbwack by b-money dizzle March 28, 2005

dumbback

To respond to ribbing and or being poked fun at with an utterly lame response that lacks wit and shows how much of a tool you really are.

George eating as many shrimp as he can gets zinged by a colleague with the classic line... "Hey George, the ocean called, they're running outta shrimp"... He stews and comes up with a dumbback.... much much later... "Oh yeah.. Well the Jerk Store called and they're running out of you" This is when you realized you met your match awkwardly laughed and should have limped back to Mommy and called your therapist ASAP.

dumbback by Bobby Big Head September 5, 2009

dumback

A person who tries to verbally retaliate to a witty comment, and fails epically.

a: "Your gut is so big, if i threw a cheeto at you it would revolve around it."

b: "Your brain is so dumb that it can't even do stuff."

c: "DUMBACK!"

dumback by sike moda November 12, 2009

Dumbsack 

Someone who Is a dumbsack is someone annoys people to act dumb

Yo that weird kid at school is a dumbsack

Dumbsack by I’m a nerd March 1, 2020