Someone or something that is lame. Combines the words 'lame' and 'ass' to make a much better insult.
Example: My sister is full of lameassness.
by Cake Cuff April 25, 2007
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somebody who thinks they are not lame, but clearly are (eg, someone who posts on a DICTIONARY site but can't spell simple words)
"Your" a lameass if you think this isn't "a" excellent example of "some one" who shouldn't be posting on here.
by LaffnStock September 6, 2006
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Nicko was such a lameass his mom kicked him out of his own house.
by The Cheese April 16, 2003
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Noun used to describe someone who will not participate in fun times, or someone who tries to derail a sweet prank or adventure. (See wet blanket)

Adjective used to describe something that is not fun, but could have been.
"This lameass is trying to stop us from throwing the old TV off the balcony at the climbing gym."

"What is with the mimes? This is the most lameass party I have ever been to."
by EOCANADA December 3, 2011
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Those are a bunch of lameasses!
by Nicko March 24, 2003
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a person thats not cool and acts like a dumb bimbo .
" Why you actinq like that you lameass? "
by krissybishh x3 March 13, 2009
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One who is boring, does nothing but sit at home, maybe playing videogames or watching T.V.
If you weren't such a lameass maybe you'd have a life.
by Nicko March 24, 2003
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