bar banking
n.— «Bar banking, as it is sometimes called, has provided a financial lifeline for huge numbers of undocumented Irish over the years.…The paycheck is counter signed and handed over the bar by the individual who then spends part of its sum total on the premises.» —“Last orders for bar banking?” by Ray O’Hanlon Irish Echo (New York City) Aug. 24, 2005. (source: Double-Tongued Dictionary)