Chris Pratt's been trending for posting horribly bigoted tweets from back before his Marvel Universe days, but he says the backlash is unwarranted ... because the tweets are phony.
A spokesperson for the "Guardians of the Galaxy" star tells TMZ ... he never posted the offensive messages that began circulating Wednesday morning. They appeared to be from 2012 and 2013, with one saying "calling another n***a a 'n****r' is hilarous idc" ... and the other "Muslims scare me so much."
You can see why fans would be upset, but Pratt's rep says, "Chris never tweeted the offensive things that are being circulated today. Any suggestion that he did is not only totally false but also defamatory."
Twitter, where the fake tweets have trended all day, was also suspicious, and a senior exec for the platform says they "strongly believe these [tweets] to be fake."
There were 2 other tweets circulating, but they were relatively innocuous jokes. Pratt's rep confirms one of them -- suggesting all the Miss America contestants are super skinny -- is real.
Hardly cutting edge humor, but that one you can still see on Chris' timeline. His camp says there was no deleting of tweets -- the offensive ones never existed ... until someone else made them up.