Hot dog Dorothy had in Oz? One hundred percent (2,4)
I believe the answer is:
in toto
'dorothy had in oz? one hundred percent' is the definition.
I can't judge whether this definition defines the answer.
'hot dog' is the wordplay.
'hot' becomes 'in' (both can mean fashionable).
'dog' becomes 'toto' (I've seen this before).
'in'+'toto'='IN TOTO'
Can you help me to learn more?
(Other definitions for in toto that I've seen before include "Altogether, completely" , "As a whole (Lat.)" , "overall" , "All told" , "In entirety" .)