(noun) a person who performs a charitable act for non-assholes, while at the same time being an asshole toward other assholes.
When traffic is merging down to a single lane, and assholes are using a partial lane to cut traffic, a benevolent asshole will block the partial lane, while maintaining his/her rightful place in line, thus preventing other assholes from cutting in line.
by I-66 Driver September 8, 2010