Bit under the weather 

Feeling sick or unhealthy.

I'm feeling a bit under the weather. So, I'm not comin' to office.

Bit under the weather by Arun Prakash September 13, 2006

bit under the weather 

This is the British middle class equivalent of the exclamations 'ill' or 'sick', meaning cool. Being terribly modest and reserved, one doesn't want to overstate things.

Yo brother, that deck is a bit under the weather

bit under the weather by Bob Q. Holness August 26, 2008