Get ready to hear my NEW prediction for the song of the summer because this song is both catchy and it gives you the inspiration to get your fitness in check. Youtuber/Singer Jazz Emu song is called "Hench" which is slang in England. Per Urban Dictionary it means,
1) someone strong- looking, or muscular. Specifically appearance DO NOT get confused with if they be strong, but don't look it.
1) to hench: to muscle someone out, push them aside, beat them in a fight.
Check it out and good luck not having it stuck in your head.