po·ny·tail 
/ˈpoʊniˌteɪl/ noun
plural po·ny·tails /ˈpoʊniˌteɪl/ noun [count] : a way of arranging hair by gathering it together at the back of the head and letting it hang down freely
▪ She usually wears her hair pulled/tied back in a ponytail. — see picture at hair
▪ She usually wears her hair pulled/tied back in a ponytail. — see picture at hair
