And by amateur, he means super "low-rent."
After he made his entrance on Friday's edition of The Ellen DeGeneres Show by offering up some dance moves for Ellen DeGeneres' fans, the funny lady couldn't resist asking the actor about his youthful venture, which he copped to last week in a revealing interview with Buzzfeed.
"You're an excellent dancer, and I think I know why you're an excellent dancer," said DeGeneres said. "I think you need to share the news with everyone. You actually have something in common with Channing."
"Oh, just one thing?" Pratt quipped. "Oh yes…it is true. It's true but it's sort of, it's not really true. Um, it's true. I don't know why I ever talked about this. When I was a kid I lived in a small town. I was a stripper for a little while. A little while."
That prompted howls from the ladies in the audience. But Anna Faris' hubby quickly set the record straight on what exactly his stripping entailed.
"Oh, no, no, no. It was very low-rent. I was like, uh, the very very low-rent Magic Mike," he noted.
When asked by DeGeneres how much he made, Pratt replied he earned "forty bucks a pop" and did it three times: at bachelorette parties in his hometown and, no kidding, for his friend's grandma.
As for whether he dressed up like a cop, the Parks and Recreation star said he couldn't afford a police outfit on his budget and then dismissed outright the whole idea of him ever being a stripper of note, á la Channing.
"I wasn't good. I would just, like, slowly, awkwardly dance and then go down to my shorts and they'd be like, 'no!' It wasn't ever crazy. 'We said forty. Here you go, there you go.' So it was not sexy. No," he joked.
Good to know he's got a sense of humor about it.
While he may not have been all that hot in the living room, Pratt's career meanwhile is heating up big time. Not only does he star as Peter Quill in next summer's Marvel blockbuster Guardians of the Galaxy, but he's also reportedly being eyed for one of the leads in Universal's next Jurassic Park sequel, Jurassic World.