An occurance that takes place when two or more people are arguing. One person insults another using an allusion, the person whom the insult was directed at is unfamiliar with the allusion, her/she then uses his/her ignorance of the thing being alluded to as (the basis of) a comeback.
Person 1: "What the hell is wrong with you!?! is your frontal lobe disconnected!?!"
Person 2: "What the fuck are you talking about? your fucking stupid!"
Person 1: goddamn your biggoted! are you related to Archie Bunker?
Person 2: Who the hell is Archie bunker, is he your Mastabatory Fantasy?
-Person 2 has used a Comeback from ignorance in both examples
An individual who leaves words and/or definitions on UD that are unintelligable, opinionated, anecdotal, an inside joke, factually incorrect, erroneous, unnecessary, poorly worded, poorly described, overcomplicated, unlikable or worst of all lacking humor or charm
Definitions left by An Urbandictionary dumbass can be found at the very back of the page with many down thumbs on them. why an editor even accepted them i'll never understand