Rare term for masochism; the more common word is マゾヒズム. Used in psychological or literary contexts.
See also: マゾヒズム
The word 被虐心 is sometimes used as a translation for masochism.
Compound of 被 (ひ, 'receive') + 虐 (ぎゃく, 'oppress') + 心 (しん, 'heart/mind'), literally 'mind that receives oppression'. The exact derivation is uncertain; it likely arose as a translation of the Western concept of masochism.