Definition of have a rummagechiefly British
- Have a rummage through the box and see if you can find the toy you're looking for.
: to make a thorough search or investigation
: to engage in an undirected or haphazard search
: to make a thorough search through : ransack
: a confused miscellaneous collection
: items for sale at a rummage sale
: a thorough search especially among a confusion of objects
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