Top definition
An unscrupulous individual who loans money at high interest and will inflict bodily harm when payment is short or not forthcoming upon request.
Tommy owed the mob $1500 and was short $300 on payday. The Knee Cap Banker collected the cash and now Tommy is on crutches and owes $600 (principal + interest).
by TheLadfromTrinidad April 28, 2014
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