MADAO 間陀男 is a nickname first given by Kagura to Hasegawa Taizou in episode 16.
According to Kitaooji Daigorou school report, Madao is the master of the park. A creature with a beard and sunglasses. It sits in the park all day without work. But his teacher corrected him saying Madao is an unemployed middle-aged man living the park.
The abbreviation has since then been given several different meanings by different people
- MAru de DAme na Ossan - Good-for-nothing old man (Kagura ep. 16)
- MAjide DAsai Ossan - Really uncool old man (Oonishi)
- MAssa ni DArusou na Oyaji - Uncool looking old man (Job interviewer)
- MAttaku DArakushite Ossan - Really depraved old man (Job interviewer)
- MAttaku DAijoubu ja nai Okyaku - A customer who's really not alright (Otose)
- MAtomo ni DAkaretakunai Otoko - Men no one wants to date (Shimura Tae)
- MAttaku DAmesenai Otoboke - Fool who unconvincingly feigns ignorance (Okita Sougo)
- MAssugu ikite mo DAinashi na jinsei na Ojiisan - Old man who lives as he wants but accomplishes nothing (Kagura)
Meanings not directed to Hasegawa
- MAzui DAshi to Oage - Horrid bean curd
- MAji de DAkaetai Otoko - Man one seriously wants to date (Kondo Isao)