drag and brag
n.— «He wanted to give his students, whatever age and background, an experience they would not forget and one that was tied to the environment around them. He was not a naturalist who would drag a group through the woods, spouting facts—what some naturalists call a “drag and brag.”» —“Nature Watch: Remembering an educator with an illuminating flair” by Gerry Rising Buffalo News (New York) Nov. 11, 2007. (source: Double-Tongued Dictionary)