uncle; middle-aged man Word type: Nouns Standard: おじさんStandard kanji: 叔父さんExample: あのおっさんいっつもあっこにおんなあ。 That older guy is always over there. Commentary: おっさん is similar to おっちゃん, but has a slightly ruder feel. You probably want to avoid saying おっさん to the person in question. It should not be used with family members. See おっちゃん for further usage notes. The female counterpart of おっさん is おばはん.