Picked up bunny girl's cash (5)

I believe the answer is:

dough

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'cash' is the definition.
(dough can informally mean money)

I don't understand the rest of the clue.

(Other definitions for dough that I've seen before include "Stiff flour mixture" , "Flour mixture for bread and pastry" , "Lucre" , "Moistened flour" , "Flour and water mix; money" .)

I've seen this clue in The Independent.

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