half-assedly

From half-assed +‎ -ly.

half-assedly (comparative more half-assedly, superlative most half-assedly)

1. (slang, somewhat vulgar) In a half-assed manner; poorly or incompetently.
   • 2017 January 12, Jesse Hassenger, “A literal monster truck is far from the stupidest thing about Monster Trucks”, in The Onion AV Club‎^[1]:

     Recycling Americana through predigested pop culture makes Monster Trucks seem indebted to Amblin movies of the ’80s, by way of the boy-and-his-car riff on those same movies Michael Bay half-assedly performed in the first Transformers.