1.
guy, fellow, person
A casual and rough way to refer to a person. Can be neutral among close friends or derogatory depending on tone and context.
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やつ is casual and can be rude depending on context. When referring to people:
When referring to things (sense 2), やつ is simply casual with no negative connotation.
Forms
Usage
Not used in polite speech; say 人, 方, or もの instead, and never use やつ for a superior or a stranger. あのやつ is not said: use あいつ (or あの人 politely).