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1.
The redneck equivalent of "yes of course."
Are you gonna go pick up yer date, Billy-Bob?
Darn tootin! hyuk
by matt February 16, 2004
 
2.
A phrase that 99 year old men use when describing a "fine young thing"
Adjective.
"Ricky Bob was that pretty young thing fly?"
"Darn tootin! Der ol' Bobby Rick!"
by Meeka! January 05, 2009