half-assed

[ haf-ast, hahf- ]
/ ˈhæfˈæst, ˈhɑf- /

adjective Slang: Vulgar.

insufficient or haphazard; not fully planned or developed.
incompetent; lacking sufficient ability or knowledge.

Origin of half-assed

First recorded in 1960–65; half + ass2 + -ed3

Example sentences from the Web for half-assed

British Dictionary definitions for half-assed

half-assed

adjective US and Canadian slang

incompetent; inept
lacking efficiency or organization