blow·out BrE AmE , blow-out /ˈbləʊaʊt $ ˈbloʊ-/ noun [countable]
1 . a sudden bursting of a tyre ⇨ puncture :
I had a blow-out on the driver’s side.
2 . [usually singular] informal a big expensive meal or large social occasion:
We went for a real blow-out to celebrate.
3 . American English informal an easy victory over someone in a game
4 . a sudden uncontrolled escape of oil or gas from a ↑ well