shampoo rage Share definition Flag When you snap the lid closed on the shampoo bottle and small shampoo droplets hit you in the eye. 'Hey Lionel, why were you shrieking maniacally in the shower?' 'Oh man, damn shampoo rage again, I'm changing brands!' shampoo rage by Herbert Wheedlenerm November 24, 2013 0 0 Get merch Get the shampoo rage mug. Buy Now — $32.95 See more merch