A person who stares or gawks at something, especially in a foolish or nosy manner, often causing traffic delays by slowing down to look at accidents or other incidents.
The accident on the highway attracted a lot of rubberneckers, causing a significant traffic jam.
An inquisitive onlooker who turns to stare at any event or scene out of curiosity.
Tourists stood outside the film set like rubberneckers, hoping to glimpse a celebrity.