Top Definition
A pairing including two members of the band Arashi, Matsumoto Jun aka Matsujun and Ninomiya Kazunari aka Nino, in a romantic relationship.

This pairing is usually described as bitchy and snarky.
"Did you hear about Jun and Nino's kiss at the last concert?"

"Yes! Total Matsumiya!"
by ArashiAddicted December 30, 2009

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