коптырта•ш (-ем)
{verb II} [Generate paradigm] 1. {also figurative} to deform, to dent, to put a dent in
♦ кӱ•ртньӧ я•шлыкым коптырта•ш (-ем) {verb II} to deform an iron box
♦ машина•м коптырта•ш (-ем) {verb II} to make a dent in a car, to dent a car