Internet slang meaning, "are you serious?", usually followed by the disbelieving remark, u canot b serios.
see serios
see serios
by Occupant Ilied Industries May 2, 2005
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r u serios
• R.U.A.H.
• r u gey
• r u 4 sexes chat
• r u high
• R u mad?
• r-u-n-n-o-f-t
• r u trippin
• R U up?
• r&u