Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)
a man's word is his bond; a man does not go back on what he's said
ああ、男に二言はない。でも手伝うだけだからな。美咲もやれよ。Yes, a man is as good as his word. But I'll just be helping, you understand. You'll have to work too.
Also written 男に二言は無い【おとこににごんはない】