Cor4 Fitness - What is the BOSU ball? BOSU stands for 'both sides up' meaning that the ball can be flipped on either end to target different goals. The BOSU is a
What is the meaning of "I'm going to ball up on some people over there"? - Question about English (US) | HiNative
![Ball up - meaning and examples - 1000+ Phrasal Verbs (A to Z)to sound more like a native speaker - YouTube Ball up - meaning and examples - 1000+ Phrasal Verbs (A to Z)to sound more like a native speaker - YouTube](https://i.ytimg.com/vi/wv7f3XLK6yE/hqdefault.jpg)