This rip is a melody swap of "K.K. Jazz" from the game Animal Crossing.
The reason for the unusual catchphrase has yet to be determined. This could be a glitch in the channel, as this rip was uploaded between "Futari Happiness (NOZOMI MIX) - Love Live! School idol festival" and the beginning of the Reboot. However, this could also be a reference to TGH, a speedrunner on Twitch and YouTube known for playing speedruns of Undertale.