To clean out

to exhaust; to empty; to get away from (one) all his money.
- De Quincey.

See also: Clean

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
While these units are easy to transport, they do not provide the means necessary to clean out the valve box.
Their cause was aided by the Lions front five and backs racing in to clean out opposition players at the breakdown.
An example in a mixing room would be a sheet on how to start up a batch-off machine or a sheet on how to clean out a mixer.