gas ‧ ket /ˈɡæskət, ˈɡæskɪt/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Origin: Probably from French garcette , from Old French , 'little girl' ]
1 . a flat piece of material, often rubber, placed between two surfaces so that steam, oil, gas etc cannot escape
2 . blow a gasket
a) if a vehicle blows a gasket, steam or gas escapes from the engine
b) informal to become very angry