Top definition
To perform an act in a manner characterized by lack of give-a-shit, by absent-mindedness, or by disregard for quality of work; determined by or dependent on apathy; careless.
Wow, Donald is really planning his political campaign halfasszardly, but it seems to be working for him.
by dontpanic71 March 25, 2016
Happy St. Patties Day!
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