Amy Schumer took to Twitter Wednesday to deny allegations that she steals jokes after a compilation video was released online, pointing out the similarities between her jokes and material from other comedians.

The individual responsible for the video accused Schumer of using material from Kathleen Madigan, Tammy Pescatelli, Wendy Liebman and the late Patrice O'Neal.

The video also suggests that Schumer's "Trainwreck" poster, which shows her knocking back a beer in a gown, was copied from an "It's Always Sunny in Philadelphia" promo photo, which features Kaitlin Olson in a similar position, Entertainment Weekly reported.

Schumer also addressed the joke-stealing allegations on a radio interview on Wednesday. "I would never, ever do that, and I never have," she said on Jim Norton's SiriusXM. "I have to come up with so much material for my TV show, this movie, stand-up. And I'm so careful. And none of these things had ever reached me. I will literally take a polygraph. And I just would never do that. That would be so stupid for me to do that."

Schumer added that she believes one of the comedians featured in the video, Tammy Pescatelli, is responsible for these joke-stealing allegations.

"Both Kathleen and Wendy know me and they don't believe I would do that, I think this is Tammy's trying to get something going," Schumer said, according to People. "I think [Tammy] is upset I blocked her on Twitter a couple years ago because she was unkind to my best friend, Rachel Feinstein, and I didn't like how she treated Rachel. I don't think she's got much going on, this is my guess. I think people get upset by success."

"I had definitely never seen Tammy Pescatelli -- like, I didn't happen to catch her 2006 Comedy Central special and sit on that bit 'til I got a movie. Like, I sat on that bit for nine years and then was like, 'Here's my chance to steal that Tammy -- the famous Tammy P -- bit,'" she added, according to Entertainment Tonight. "This is what happens -- people build people up and then they like to rip them down when they're experiencing some success."