lukins's definitions

trolley bounce

a young person ( usually a teenager) going food shopping with their parents and slipping their own purchases into the trolley without asking and smuggling them through the checkout and paid for without the parentals noticing. They then bag them up and keep them.
therefore their stuff bounces in and out of the trolley

Shelley managed to trolley bounce ten pounds worth of hairspray, makeup and chocolate without her father noticing.

by lukins October 18, 2009