blow your top Share definition Flag Lose your cool. You lost your ability to control your emotions. Same as blowing a gasket. Please don't blow your top again today if the Seahawks don't win! I can't afford to replace another smashed TV. blow your top by NursAM2017 October 23, 2015 0 0 Get merch Get the blow your top mug. Buy Now — $32.95 See more merch
