0 to fill something with air using a pump: --
Let's pump up the volume a bit!
The US was able to pump up exports.
I must pump the tyres up on my bike.
Have you pumped up the balloons yet?
1 to increase the price or the amount of something: --
The new beach development plans could pump up tourist revenue in the summer.
They have simply pumped up prices to cover the additional costs.
For corporations these measures can reduce costs and pump up the bottom line.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
pump sth up