Noun: A Jeroen is an optional gear for newer cars. When you shift into Jeroen, your car will automatically steer you through the nearest Pizza Hut, rave, and Bed & Breakfast in that order.
Verb: Making a dramatic entrance into an unassuming atmosphere, doing a hair flip, then sauntering out again.
I'm feeling saucy, time to shift into Jeroen!
I wish these kids would quit jeroening, it's quite distracting, isn't it?