adjective Slang: Vulgar.
Examples from the Web for half-assed
What a throwaway, half-assed response devoid of any sort of research.Macklemore, the Grammy Winning Rapper, Is a 9/11 Truther Who Likes to Play Anti-Semitic Dress-Up|Emily Shire, Marlow Stern|May 20, 2014|DAILY BEAST
Somers has gotten a lot of flak for her crazy assertions and half-assed medical theories.Suzanne Somers’s 13 Craziest Quotes: Sex, Adam Lanza, Patrick Swayze, and More|Amy Zimmerman|October 30, 2013|DAILY BEAST
It was “half-assed,” observes a Middle East insider close to the administration.
Instead, the studio got a half-assed explanation: “No points for early,” I argue.‘White Collar’ Creator Jeff Eastin: My Biggest Con|Jeff Eastin|July 10, 2012|DAILY BEAST
Had the SEC done even a half-assed job, the Ponzi scheme would have been discovered a decade ago.
I didn't do it, and I can beat any case that half-assed ex-ambulance-chaser, Farnsworth, could dream up against me.Murder in the Gunroom|Henry Beam Piper
British Dictionary definitions for half-assed
adjective US and Canadian slang
Word Origin and History for half-assed
"ineffectual," 1932, perhaps a humorous mispronunciation of haphazard.