Top Definition
A goomba, or ignorant individual who makes idiotic remarks and makes everyone around them feel awkward. Any person who says things completely irrelevant and not funny in anyway to try and get some laughs but fails miserably.

Often said in a Brooklyn accent (mawng-uh-loon)
"Hey man, you guys ever seen that episode of Family Guy where Brain tries to get with Louis?"
"..no"
"Oh well its really funny man, the episode starts off and-"
"shut up ya fackin Mangaloon.."
by Keep.it.Sleezy December 27, 2011

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