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adv. - something done partially, incompletely, or unenthusiastically. The adverb form of half assed.
I told you to clean your room thoroughly, meaning not half assedly.
by scott trowbridge June 08, 2006
the act of something half-assed being done
1.)fuck, i have a paper due tomorrow.
2.)don't u dare do it halfassedly
by vanillaxbabe November 19, 2008