hope someone can explains to me the correct meaning of this expression .My guess is : "I don't know if this is the right word to describe you" ?
Context: After MC described his strategy in detail, a character is commenting about him.
Girl「妥当な判断です…… こんなことを言うのも何ですけど、切れ者ですね、Aさまは」
MC (A)「俺が?なまくらだよ俺なんて」