いい男
also: よいおとこ
Meanings
1
handsome man; good-looking guy
Refers to a man who is physically attractive. Often used in casual conversation.
He's a really handsome guy, isn't he?
That actor is famous for being good-looking.
2
Describes a man of good character, reliable, or admirable personality. Not about looks.
Tanaka-san is a good guy. He always helps out.
He's rough-spoken, but deep down he's a great guy.
3
Slang term within yakuza circles for a high-ranking or respected member. Not used in polite society.
I hear that gang's young leader is quite an influential figure.
4
Rare, old-fashioned term for a sumo wrestler, especially one of good physique or character. Mostly historical or literary.
In the old days, sumo wrestlers were sometimes called 'ii otoko'.