Wiktionary
vb. (context intransitive historical English) To win prestige in battle by performing an act of bravery in the face of the enemy (such as touching him and escaping unharmed) — a ritual of the (w: Plains Indians) of North Americ
Usage examples of "count coup".
To count coup, he must touch one of them, and characteristically he chose the dark leader.
Some were even now urging their kaiila upward, doubtless desiring to be the first to count coup.
I count coup for every eagle feather in this bonnet, and I will not have my words spoken to any damn enemy by any woman!
But the idea had been for the Israelis to count coup that way on the OpFor.
But neither of us could possibly spend the money we already have fast enough to keep our net worth from increasing hand over fist, so what's the point in squeezing the last drop of blood out of a turnip just to keep score or count coup?
According to the code of chivalry, to help the helpless is to count coup.
The first night I was here they listed fifty-odd people who needed to be killed, itemised their crimes, and offered me the honour of being the next member to count coup - pick a client, do!
Pierre had Indian blood on his mother's side, and he saw this as a chance to count coup on the others.