Ridiculous; Random; Silly usually to describe another person or image.
That picture looks really derpy.
by CJK909 January 13, 2015
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A derpi is the coming together of a Jessi and a gussi usually in an online game form.
A derpi may also be used as an affectionate term of endearment by one of the aforementioned or by any other user. The term derpi stems from the origin, derp.
One might refer to another individual as a "derpi" if they have done something silly.
by DerpiJessi August 22, 2012
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Awkward or embarrassing, especially pertaining to a person.
"Man, that guy is so awkward!"
"Yeah, he's really derpy."
by SiriusLG January 20, 2010
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adjective

accident prone; perhaps so much so that it makes one look foolish
I've been feeling pretty derpy today. Everything I touch seems to fall apart, and I cannot seem to do anything right.
by Count Schlick February 29, 2012
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'derpiness' - noun.

The act of being stupid / silly but generally in an inoffensive way.
Sorry for my derpiness. I wasn't thinking properly!

His derpiness is off the chain today.

Your derpiness is making me laugh.
by squigglers November 09, 2015
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