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hell yes, fuck yeah, you know it no doubt; thats a dumb question
Q. Hey dude, are you gonna score tonight or what?
A. Yessir!
by DooKiecaRot September 27, 2003
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a compound form of the words "yes sir" the term yessir is a form of agreement
D'Shawn: We gon hit up the strip club tomorrow?
Reggie: Yessir
by Jonah 27 April 07, 2006
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A slang word whick Manx people( From the Isle Of Man) use
a man see's one of his mates and says alright yessir.
by Danny a.k.a Manx fat boy January 06, 2008
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The same thing as yes mam, except you mainly use it for bossy moms, sisters, and teachers
Sister: Hey Sean, go to sleep now!

Sean: YES SIR!
by YESMAM September 20, 2007
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