What does your friend not believe exists? It's easy to find references to the term online: https://ja.wikipedia.org/wiki/%E3%83%90%E3%82%BF%E3%83%BC#%E8%B1%A1%

What does your friend not believe exists? It's easy to find references to the term online: https://ja.wikipedia.org/wiki/%E3%83%90%E3%82%BF%E3%83%BC#%E8%B1%A1%E5%BE%B4 https://ja.wikipedia.org/wiki/%E3%83%90%E3%82%BF%E3%83%BC#%E... 日本では、「バター」が西洋風の象徴として扱われ、西洋の物や西洋かぶれに対して「バタ臭い」と形容することがある。 "In Japan, butter is used as a symbol of the west, and the term 'batah-kusai' is used to represent western objects or the slavish imitation of western approaches." (half-assed mediocre translation by me, there's probably a better way to translate 西洋かぶれ in particular) Kotobank simply has 西洋風である。また、西洋かぶれしている。 https://kotobank.jp/word/%E3%83%90%E3%82%BF%E8%87%AD%E3%81%84-601710 https://kotobank.jp/word/%E3%83%90%E3%82%BF%E8%87%AD%E3%81%8... Etc. etc. https://duckduckgo.com/?t=ffab&q=%E3%83%90%E3%82%BF%E3%83%BC%E8%87%AD%E3%81%84&atb=v158-1&ia=web https://duckduckgo.com/?t=ffab&q=%E3%83%90%E3%82%BF%E3%83%BC...