"Tough noogies" (3,3)
I believe the answer is:
too bad
'tough noogies' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for too bad that I've seen before include "A pity, being excessively naughty" , "I have no sympathy" , "Informally regrettable, a pity" , "Tough" , "That's regrettable, informally" .)