blowsup
verbUK /bləʊz ʌp/
US /bloʊz ʌp/
It means something gets bigger and bigger until it pops.
The balloon blows up when you fill it with air.
OTHER MEANINGS
2. To become very angry suddenly.
Dad blows up when he sees the mess.
3. To make a photo bigger.
She blows up the picture to hang on the wall.
4. To fill something with air.
He blows up the tires on his bike.