rubberneck
[noun]
Synonyms: busybody, butt-in, buttinsky, intermeddler, kibitzer, meddler, pragmatist, prier (or pryer), quidnunc, snoop, tourist, sightseer, tripper
[verb]
Synonyms: look, eye, gape, gaup (or gawp), gaze, goggle, ogle, stare

[TahlilGaran] English Synonym Dictionary ▲

rub‧ber‧neck /ˈrʌbənek $ -ər-/ verb [intransitive]
informal to look around at something, especially something such as an accident while you are driving past – used to show disapproval:
People rubbernecking in the southbound lane caused a second accident.
—rubbernecker noun [countable]

[TahlilGaran] Dictionary of Contemporary English ▲