The exchange began with Ryan's mom, Tammy, swearing like a sailor in a video shared by Reynolds to Twitter on Monday, which began with her claiming she normally wouldn't "talk to my friends like this," but her son insisted.
The clip was shared to promote the AGBO Superhero League, where Marvel stars compete in a fantasy football league to raise money for charity.
Not to be outdone, Chris enlisted his friend, costumer Dan Blacklock, to pretend he was Chris' dad to insult Ryan. But Dan wasn't much help, as he couldn't say anything bad about the "Deadpool" star.
Still, Chris persisted.
"What did we talk about before?" Chris asked a grinning Dan during the Instagram clip. "Tell him all the things we discussed. You hate him. He's a d--khead. The worst actor. Your least favorite Canadian in the whole world. You hate Aviation Gin. That it's disgusting. It's not your favorite drink."
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"And 'Green Lantern?'" Chris continued. "What did you say about that? It's not the best movie ever. Even if you liked him, it's not the best movie."
Chris captioned the sidesplitting post, "@agbofilms superhero fantasy football league trash talking is in full swing!! It's all for charity so no hard feelings right @vancityreynolds!"