whoop

His escort would rush him up a tree till he felt the thinnest topmost branches crackle and bend under them, and then with a cough and a whoop would fling themselves into the air outward and downward, and bring up, hanging by their hands or their feet to the lower limbs of the next tree.

So, bounding and crashing and whooping and yelling, the whole tribe of Bandar-log swept along the tree-roads with Mowgli their prisoner.

“When I came up into the sun today I heard them whooping among the tree-tops.”