noun
cripple; disabled person; invalid
Derogatory term for a person with a severe physical disability. Offensive in modern usage; avoid in polite conversation.
事故で足を失った彼は、周囲から廃人扱いされた。
After losing his leg in the accident, he was treated like a cripple by those around him.
suffix
Internet slang, derogatory. Used as a suffix to describe someone hopelessly addicted to an activity, especially online games or the internet. Often seen in compounds like ネトゲ廃人 (online game addict).
See also: ネトゲ廃人
彼は毎日12時間以上ゲームをしていて、完全にネトゲ廃人だ。
He plays games for over 12 hours every day; he's a total online game addict.
Compound of 廃 (hai, 'abolish, ruin') and 人 (jin, 'person'). Literally 'ruined person'. The slang suffix usage extends the idea of being ruined by an addiction.