おそろっち

noun, noun which may take the genitive case particle 'no'

matching clothes; twinning

Slang used among young people, especially for friends or couples wearing matching outfits. Derived from お揃い (osoroi).

See also: お揃い

• 今日きょうは友とも達だちとおそろっちのTシャツを着きてきた。

  Today I came wearing a matching T-shirt with my friend.

• カップルでおそろっちのスニーカーを履はくのが流行はやってる。

  It's trendy for couples to wear matching sneakers.