"thanks for the meal and all, but really bro, you're leaving the waiter 10%?  "don't be such a backseat tipper man
someone at a restaurant who is not paying but unsolicitedly tells the person paying how much to tip
""thanks for the meal and all, but really bro, you're leaving the waiter 10%?  "don't be such a backseat tipper man" What is the definition of "backseat tipper"?