Conor McGregor told Floyd Mayweather he can take that olive branch he offered and shove it … saying, “There is no peace here, kid.”

Remember … Floyd gushed over McGregor to TMZ Sports on Monday, calling the Irish fighter a “warrior” and even inviting him to train for the Khabib fight at the Mayweather Boxing Club in Vegas.

But Conor clearly wants no part of that … declining Floyd’s offer on Tuesday with a fat middle finger.

“F*ck the Mayweathers, except Senior and Roger,” Conor said.

“There is no peace here, kid. Step up or step down.”

Floyd responded to Conor’s tweet later Tuesday night by posting a pic from the fight … saying “Easiest 9 figures I ever made!”

Obviously … there’s still bad blood on Conor’s end from when the two fought in the boxing ring last August. McGregor lost … and then had to deal with Floyd’s trash talk over their Forbes List rankings (Floyd #1, Conor #4) a few months later.

Seems like there’s really only one way to settle this for good … REMATCH!!!

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