When you drive around town in your car simply because you can't think of anything else to do.
Usually performed by teenagers in small towns because of the lack of things to do and the fact it takes only a few minutes to drive around the entire town. The passenger(s) usually attempt to find something to do or someone else for them to hang out with while the driver drives.
"What do you guys want to do?"
"I don't know."
"Let's just do some town laps."
-proceeds to drive around town-
"Did anyone text you back?"
-drives around again-