Sweaty, dirty fingers, inferring that the persons hands are unclean and sticky.
Example 1:
Bella: Get you're smitty fingers off me!
George: :(

Example 2:
Gary: Nom CHOCOLATE!
Bill: *slaps hand away* keep you're smitty fingers away from my easter egg!
by NomNomPotashMcBobbinson May 13, 2011
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