pseudo-human; mockery of a human; human-like thing (derogatory)
usually written using kana aloneslangderogatory
Derogatory slang for something that superficially resembles a human but is seen as inferior, fake, or contemptible. Often used in fiction, insults, or to describe androids, monsters, or dehumanized people.
もどき is a suffix meaning 'pseudo-' or 'mock', used in compounds like 役者もどき (would-be actor). ヒトモドキ applies this pattern to 'human'.
Etymology
Compound of 人 (ひと, 'human') + もどき ('pseudo-, imitation'). The suffix もどき derives from the verb もどく ('to imitate, resemble'), now archaic. The word is a modern slang formation.