Exhausted? Everyone, on the whole (3,2,3)
I believe the answer is:
all in all
'on the whole' is the definition.
('all in all' can be a synonym of 'on the whole')
'exhausted? everyone' is the wordplay.
'exhausted?' becomes 'allin' (I've seen this before).
'everyone' becomes 'all' (I've seen this before).
'allin'+'all'='ALL IN ALL'
(Other definitions for all in all that I've seen before include "Taken as a whole, everything considered" , "in summary" , "As a whole, considering everything" , "Taking everything into consideration" .)