someone's arse off

alternative someone's ass off

1. UKadverbialphrasereflexivevulgarWith great effort, vigour or gusto, or to the point of excess.

   We partied our arses off all night long.

   3 more examples

   I've been working my arse off all day for a measly few quid.

   What a gig! The band played their arses off.

   I didn't notice – I was too busy laughing my arse off!

2. UKadverbialphrasereflexivevulgarUsed as a general negative intensifier: to an extreme degree.

   I remember how we were all sweating our arses off during that heatwave.

   1 more example

   I could be sitting on a beach somewhere rather than freezing my arse off in this dump.

3. UKadverbialphrasevulgarnon-reflexiveSo as to rigorously exercise or exhaust someone.

   The boss has been working our arses off all week.

   1 more example

   He may be 50 years old, but he could still run your arse off.