Top Definition
To put it as simple as possible, phenio means "weenie". It can be pronounced Fen-ee-oh or Fee-knee-oh.
1) You little phenio!
2) Look at my big phenio!
3) Look at my little phenio!
4) Ew, he's such a phenio. The wuss.
by Samana Cay February 26, 2007
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