Top definition
Derogatory term for Microsoft's avatars on Xbox 360/Xbox Live, referencing their Mii-like appearance and feel, coined to mock Microsoft's extremely restrictive policies on what avatars can do in games, policies that are crafted to project a very sanitized, very Nintendoesque feel
Xbox user: "Mii60s are lame, you can't do anything fun with them!"
by Billywengemurphy March 12, 2010
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