1.) When someone calls your name, you turn your head quickly to look, and no one is there to speak to you anymore.

2.) When someone drives by in a car and beeps a horn and when you turn you cannot figure out who it was.

People who look at someone/something out of curiosity - even when they're not supposed to.

Some stupid retard that always slows down in the middle of the road just to watch some guy get arrested in the ditch! The type of guy to stare at someone taking pills and getting mad when asked to stop.

Slang: Someone who enjoys the act of slowing their vehicle to like 15 miles an hour on a motorway just so they can gawk at the wreckage of a van on its roof or a car on fire.

These people are a severe pain in the arse to emergency services, and they often cause tailbacks up to several miles.

To drive slowly by a car accident (or site having emergency vehicles) and turn the head to see anything gory.

This act exacerbates traffic delays.

to drive slowly past a motor vehicle accident to see the crash

Nosy drivers who turn their heads to look at accidents thus causing severe traffic jams on many roadways.