Definition of rubbernecked:
(v) :
To watch by craning the neck (as though it were made of rubber), especially if the observer and observed are in motion relative to each other.
(n) :
Someone who engages in rubbernecking, or turning and staring.
(v) :
To cause (someone) to watch in fascinated horror, as if rubbernecking to see a roadside accident.
(n) :
Someone or something with a flexible neck.
(n) :
(US, obsolete) A tourist.