Conor McGregor was his usual boisterous self during his and Floyd Mayweather's first press conference together on Tuesday night.While he waited for Mayweather to join him on stage, 'the Notorious' passed the time by literally dancing by himself.And when the American eventually emerged for a stare off, McGregor immediately started shouting abuse at his opponent, who didn't say a word.Dana White revealed on Tuesday that McGregor believes he will knock out Mayweather within four rounds and the Irishman reiterated that statement during his speech."He is f*****," McGregor explicitly began. "I'm going to knock him out inside four rounds, mark my words."He will be unconscious in four rounds. He's never experienced someone like me. I don't fear him."This is a limited set of rules that makes this half a fight, a quarter of a fight. If this was a true fight, it wouldn't even take one round."McGregor made sure he looked the part for the first time he met Mayweather by wearing a navy pinstripe suit, white shirt and pink tie.His opponent, on the other hand, simply came dressed in a TMT tracksuit, which McGregor soon destroyed him for: "He's in a tracksuit, he can't even afford a suit anymore!"However, there was something rather unique - for want of a better word - about McGregor's suit.During his speech, the Irishman joked that the pinstripes on his suit said 'f*** you' - but no one believed him at the time."How does my suit look? If you zoom in on the pinstripe it says f*** you," the 28-year-old said, to which the crowd cheered.Well, it turns how he was actually telling the truth (see below).

Boxing fans found McGregor's subtle message to Mayweather hilarious and couldn't believe he was actually being serious. Here's how Twitter reacted.

TWITTER REACTS