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(n) - The man you know, not necessarily your uncle, who consistently makes wildly inappropriate comments/innuendos and leers at young girls for an uncomfortable amount of time.
I can't bring my kids around Tom anymore. My daughter is old enough that he turns into an Uncle Sticky.
by lancealil January 30, 2012
large man who has the "cash box" and sells awesome stuff out of his van.

ive been in his van with him once... but thats another story.
yo uncle sticky is coming to town and hes got the dope shit man .....dinga
by dan daley April 25, 2005