jaywalker UK /ˈd͡ʒeɪwɔːkə/US /ˈd͡ʒeɪ.wɔkɚ/ noun1 •(US) A person who violates pedestrian traffic regulations by crossing a street away from a designated crossing or who walks on the part of the street intended for vehicles instead of the part designated for pedestrians. formsjaywalkers