Question

WAKE UP ON THE WRONG SIDE OF (THE) BED

Accepted Answer

To be in a particularly and persistently irritable, unhappy, or grouchy mood or state, especially when it is not in line withone's normal disposition.

I'm sorry I snapped at you earlier, I think I just woke up on the wrong side of the bed today.

Jeez, the boss has been in a really bad mood all day. I guess he must have woken up on the wrong side of bed!

Front	WAKE UP ON THE WRONG SIDE OF (THE) BED
Back	To be in a particularly and persistently irritable, unhappy, or grouchy mood or state, especially when it is not in line withone's normal disposition. I'm sorry I snapped at you earlier, I think I just woke up on the wrong side of the bed today. Jeez, the boss has been in a really bad mood all day. I guess he must have woken up on the wrong side of bed!