masochism
noun [ U ] uk/ˈmæs.ə.kɪ.zəm/ us/ˈmæs.ə.kɪ.zəm/
psychology 受虐狂;（尤指）性受虐狂
the activity of getting sexual pleasure from being hurt or controlled by another person
Compare: sadism
informal自虐狂
the enjoyment of an activity or situation that most people would find very unpleasant
I reckon you need to be into masochism to run marathons. 我觉得那些喜欢自虐的人才会以跑马拉松为乐。
Compare: sadism