A rare or playful term for 'uncle', formed by combining おじ (uncle) with じゃ (a colloquial or dialectal copula) and ひと (person). The kanji spellings 伯父者人 and 叔父者人 are ateji and extremely uncommon. This word is not standard Japanese; the usual term is おじさん or おじ.
See also: おじさん
I've seen the spelling 伯父者人 in an old manga.
A term like おじじゃひと is hardly used nowadays.
Ateji spelling for おじじゃひと, a rare or playful term for 'uncle'. The kanji 伯父者人 is not standard and may be encountered only in specific contexts.
Variant ateji spelling using 叔父 instead of 伯父, with the same reading and meaning.
A compound of おじ (uncle), the dialectal or colloquial copula じゃ, and ひと (person). The kanji 伯父者人 and 叔父者人 are ateji (当て字) and do not reflect the word's origin.