That's interesting. Nicer. Here in the US it usually loosely means step up or toughen up or to do something in a way that is considered to display strength or is manly.

Urban dictionary has it defined as a female shaming term used to get men to do something against their own self interest. I've heard far more men use the term amongst themselves than I've heard women say it. But, when women do, it is usually teasing or shaming or a combination of the two.