gunner
n.— «When I started reading law students’ blogs this past spring I kept encountering the word “gunner,” almost always used with great disdain. It was pretty easy to figure out what this slang coinage referred to: those law students who always need to volunteer an answer, and do so by in a manner that shows off how “smart” they think they are.» —“Gunning for Bear…and Wolves, But Not Nice Doggies” by Anthony Cerminaro Running With Lawyers Oct. 9, 2004. (source: Double-Tongued Dictionary)