1 definition by circa 2006, Supermarket
The drinking of Other Peoples' Drinks, specifically at a bar or public venue. Typically done without the consent or knowledge of the original owner that his/her beverage is being taken.
"Hey, that was some great OPD'ing last night. Lots of tables, lots of dancing.....perfect conditions."
by circa 2006, Supermarket February 28, 2012