Real Dictionary

manly
If you describe a man's behaviour or appearance as manly, you approve of it because it shows qualities that are considered typical of a man, such as strength or courage.

manly in American English
having the qualities generally regarded as those that a man should have; virile; strong, brave, resolute, honorable, etc.
adjective: having qualities traditionally ascribed to men, as strength or bravery
adverb: in a manly manner

manly in British English
adjective: possessing qualities, such as vigour or courage, generally regarded as appropriate to or typical of a man; masculine