manspreading       
noun [ U ]  informal uk/ˈmæn.spred.ɪŋ/ us/ˈmæn.spred.ɪŋ/
 (男性在公共交通工具上)岔腿而坐
the act of a man sitting, especially on public transport, with his legs spread wide apart, in a way that means that the people next to him have less space
  Madrid has attempted to ban manspreading on buses. 马德里已经努力要在公共汽车上禁止男性岔开腿坐。 
 - More examples
 - It is the bane of many female subway riders, a practice with a name almost as off-putting as the act itself: manspreading.
 - It’s no secret that manspreading is a hot topic of late, especially when it comes to feminist discourse.
 - Two men were allegedly arrested for manspreading, sitting with knees wide open, thus occupying two seats.
 - Manspreading is real! A new study has found that men stretch out their legs while seated on the subway five times more often than do female passengers.