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2.
#1) Iyono - a Nigerian female name which can mean "tears", "sad" or "unfortunate" depending on the dialect.

#2) Iyono - a male japanese name or last name
Japanese baseball player: Takateru Iyono, or movie actor: IYONO, Masubichi
by Pawel Michalowski February 12, 2007
 
1.
abbreviation for "I don't know"
Adrian: What the hell is wrong with you?
CdtAndrom: iyono
by CdtAndrom November 09, 2006