a few fries short of a Happy Meal

a few fries short of a Happy Meal

A pejorative phrase meaning not very intelligent or of questionable mental capacity. It can appear in many different forms and variations (for example: a few bricks shy of a load, a few cards shy of a full deck, etc.). Every time Paul tells me about his latest conspiracy theory, I can't help thinking that he's a few fries short of a Happy Meal.See also: few, fries, happy, meal, of, short