Pumpy Trousers Share definition Flag An amusing term i heard a radio dj use to refer to someone with a 'gas problem' Since you started your spinach and lemonade diet you've become a real pumpy trousers Pumpy Trousers by Wise Man November 13, 2003 0 0 Get merch Get the Pumpy Trousers mug. Buy Now — $32.95 See more merch