He’s always quick with a great story, and Jonah Hill had a real zinger during his interview on “Late Night with Jimmy Fallon” last night (January 23).

The “Forgetting Sarah Marshall” star chatted about meeting his personal idol Joe Pesci during the premiere of “The Wolf of Wall Street” recently.

After director Martin Scorsese introduced Hill to the “Goodfellas” legend, Pesci shared some sage advice with him.

Jonah recalled, “He goes, ‘Here’s what I want you to do. I want you to go buy a helmet… and I want you to keep the helmet next to your bed. And then every night, I want you to go in the bathroom and put the helmet on. And if ever the helmet doesn’t fit, it’s because too many people are going up here,’ — and he puts his fingers in my a**!”