伯父者人
Meanings
1
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.