We don't have synonyms for count coup yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are count out, count up and count noun.
(v) :
(intransitive, US, historical) 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 Plains Indians of North America.
(v) :
(intransitive, US, historical) 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 Plains Indians of North America.