Whiting-Turner alley-oop

A sex act involving one man sneaking up behind another,then reaching around them pushing/ tucking their genitals behind them and giving them a blowjob from the back. Usually performed quickly in one fluent, athletic motion. Popularized by whiting-turner jobsite superintendents.

Watch out for that old dude in the orange vest, i saw him give some one a whiting-turner alley-oop at the urinal