Altogether inside Dorothy's dog (2,4)

I believe the answer is:

in toto

'altogether' is the definition.
(I've seen this before)

'inside dorothy's dog' is the wordplay.
'inside' becomes 'in'.
'dorothy's dog' becomes 'toto' (Dorothy's dog in The Wizard of Oz).
'in'+'toto'='IN TOTO'

(Other definitions for in toto that I've seen before include "In entirety" , "overall" , "As a whole (Lat.)" , "Tranquillity" , "As a whole (Latin)" .)

I've seen this clue in the Sydney Morning Herald.

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