The story
From rubberneck (verb) + -er (suffix indicating person or thing that does an action indicated by the root verb).
Etymology from Wiktionary, CC BY-SA 4.0.
rubbernecker
rub·ber·neck·erToday it means: A person who rubbernecks; someone who cranes their neck as though it were made of rubber to see something (such as a tourist attraction) or to watch an event (such as an accident); a rubberneck. Full definition →