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1.
to be the most fly; to be more fly than another
"shit, you know alex and emily? they are THE flyest."
by emilyyyyyyyyyyyyyyyy July 15, 2008
 
2.
A complete goof; usually somebody who isnt the brightest but is very funny. A person who fails at almost everything such as majong and only mows lawns for a job, overall a complete noob and will scam you at any chance they can get.

Refer to Samtaro, Quite similar
"Oner Flyest scam me!"
by Squaw diddler April 05, 2009