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1.
A salutatory expression, possibly Maynardian in origins, reflecting an optimistic outlook on the task at hand.
Yes2AV? Yes Boys!

Yes boys: Cindies double dip!
by PseudonEmma May 05, 2011
 
2.
A greeting or an afermative answer
1){Phone Rings}...
Yess Boyyyyy!!!

2)Person 1: Did you hear about Sophie?
Person 2: Yes boy!
by Rosiiie September 20, 2008