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1.
A man of principles.
"You can trust em'. He's a good guy. A regular "Sweet Dick Willy.""
by kylethekat March 24, 2010
 
2.
Giving a girl or multiple girls a round or rounds of mind blowing sex. or just generally gegrading them.
Smitty- yo ryan did you give that skank the sweet dick willy last night? Ryan- sure did, slut had a boyfriend too!
by matt smitty smith March 25, 2008