"Good ___ you!" (3)
I believe the answer is:
for
(Other definitions for for that I've seen before include "In favour of; since" , "Favouring" , "On behalf of" , "See 24" , "In support of" .)
I believe the answer is:
for
(Other definitions for for that I've seen before include "In favour of; since" , "Favouring" , "On behalf of" , "See 24" , "In support of" .)