The AEW Grand Slam event kicked off with a massive title change, as Chris Jericho became the new ROH World Champion and earned a new nickname in the process.The Wizard has had a slew of high-stakes matches recently, with his last one ending in a loss against Bryan Danielson and effectively killing his plans to become the AEW World Champion. However, he quickly switched targets to the ROH World Title, challenging Claudio Castagnoli to a face-off.Despite Claudio gaining the upper hand initially, the JAS leader was able to pick up the win after a low blow. This marked the eighth world title he has acquired to date, earning him the nickname "JerichOcho" from fans on social media.Here are some of the biggest reactions on Twitter after the new ROH World Champion was revealed.MIKE BOWERS@THEMikeBowers@AEW @ringofhonor @IAmJericho More like Jerichocho amirite@AEW @ringofhonor @IAmJericho More like Jerichocho amiriteWhiteLlamaPooP@WhiteLlamaPooP@_denisesalcedo JERICHOCHO BABAY!@_denisesalcedo JERICHOCHO BABAY!Pete Cody@PC1985I JUST SAW @IAmJericho WIN THE WORLDS CHPIONSHIP! WHAT A MOMENT FOR JERICHOCHO! #AEW41I JUST SAW @IAmJericho WIN THE WORLDS CHPIONSHIP! WHAT A MOMENT FOR JERICHOCHO! #AEW https://t.co/H0jKT5SgxcCoach.@Suppaa_FlyJERICHOCHO !! #AEWGrandSlam1JERICHOCHO !! #AEWGrandSlamWrestle “WrestleHAM “Ham@WrestleHAM@iamjericho is now #JERICHOCHO1@iamjericho is now #JERICHOCHOSloppy Shop Jones@sloppyshopjonesBest opening match in #AEWDynamite history? @IAmJericho and @ClaudioCSRO just did that! Congrats to the Jerichocho for getting that ROH world title by any means necessary by gawd! #bwebsee31Best opening match in #AEWDynamite history? @IAmJericho and @ClaudioCSRO just did that! Congrats to the Jerichocho for getting that ROH world title by any means necessary by gawd! #bwebseeEthan Karnes@EthanKarnes1Best thing to ever happen to ROH not even lying #AEWGrandSlam #JerichochoBest thing to ever happen to ROH not even lying #AEWGrandSlam #JerichochoAdam Pace@muzza_316Chris Jericho is the new ROH World Champion!!!! #Jerichocho #8time #AEWGrandSlamChris Jericho is the new ROH World Champion!!!! #Jerichocho #8time #AEWGrandSlamHARITO@RitosmodernlifeGood on Jerichocho @IAmJericho #AEWGrandSlamGood on Jerichocho @IAmJericho #AEWGrandSlamWhiteLlamaPooP@WhiteLlamaPooPOh my god, @IAmJericho is Jerichocho! The NEW @ringofhonor champion! #AEWGrandSlamOh my god, @IAmJericho is Jerichocho! The NEW @ringofhonor champion! #AEWGrandSlamMichael Shoemaker@shoeie1969Congratulations to Chris Jericho! You got the Ocho! #AEWGrandSlam #RingOfHonorCongratulations to Chris Jericho! You got the Ocho! #AEWGrandSlam #RingOfHonorAs of now, it remains to be seen how the Wizard's eighth world title will play out in the coming weeks.Do you think the JAS leader should have a rematch with Caludio Castagnoli? Sound off in the comments below!