man who deliberately bumps into women
Refers to a man who intentionally collides with women in crowded public spaces such as train stations or streets, often as a form of harassment. The term is a modern coinage and carries a negative, critical tone.
I encountered a man who deliberately bumped into me on the station platform.
It seems that incidents involving men who intentionally bump into women are increasing.
A modern compound of ぶつかり (continuative form of ぶつかる, 'to bump into') and 男 ('man'). The term emerged in Japanese media to label a specific type of public harassment.