It takes a lot to get Leonardo DiCaprio turned on ... so says the actress who had the enviable task of giving Leo a lap dance in "The Wolf of Wall Street" ... but failed to get a rise out of him.
Tracie Jayne -- who was cast as a stripper in the movie -- says she threw herself into her work ... grabbing DiCaprio by the hair ... licking his neck ... and biting his ear -- but wasn't able to arouse little Leo.
"Maybe he was wearing Spanx or he taped it down or ... thought about his dead grandmother," she joked.
Jayne -- who's actually a standup comic by profession -- insists Leo still had a good time ... telling her to "go for it."
You gotta hear her tell it.
'Wolf of Wall St' Stripper
My Lap Dance Didn't Arouse DiCaprio
Maybe He Taped It Down
12/31/2013 11:42 AM PST BY TMZ STAFF
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