美洲印第安人剃光的头顶上的一绺头发(作为向敌人挑战的标志)

[ noun ]
a long tuft of hair left on top of the shaven head
<noun.body>

Scalp \Scalp\, n. [Perhaps akin to D. schelp shell. Cf.
{Scallop}.]
1. That part of the integument of the head which is usually
covered with hair.

By the bare scalp of Robin Hodd's fat friar,
This fellow were a king for our wild faction!
--Shak.

2. A part of the skin of the head, with the hair attached,
cut or torn off from an enemy by the Indian warriors of
North America, as a token of victory.

3. Fig.: The top; the summit. --Macaulay.

{Scalp lock}, a long tuft of hair left on the crown of the
head by the warriors of some tribes of American Indians.