That guy who is not in very good shape, yet feels the need to criticize everyone on their form and the amount of reps someone does during a specific exercise.
Guy 1: Yo dude, your curling form is horrible. Straighten your arms and increase your weight.
Guy 2: STFU Mr. Fitness Instructor. Since when did you become an expert this shit?
Guy 2: STFU Mr. Fitness Instructor. Since when did you become an expert this shit?
by BIG SCRAP February 2, 2016
Get the Mr. Fitness Instructormug.