noun
Refers to a man who is the lover of a prostitute or a married woman. The word is dated and now rare; modern Japanese would more often use 愛人 or 情夫.
See also: 情夫
彼女にはまぶがいるらしい。
She seems to have a lover.
その遊女はまぶに会いに行った。
The prostitute went to see her lover.