Stragglers generally refer to
people who aimlessly go to places to either live there, they think they are protecting something, or because they feel like they are mutually bonding with strangers/
people by sitting in their cars outside of business/apartments/forest/parks.
Common examples would be mall dwellers, forest dwellers (
people who live/squat in their cars in the woods), "Van lifers," people who solicit businesses/people with no intent of purchasing, people who live in the Walmart parking lots, and squatters.
Man look at all those stragglers in their
Jeep Wranglers in the paved parking lot of the
forest preserves! They are staring at
us.