What jingle/tune is this from.

Back when I first started playing this game I could only play Jinx and Gnar. In skype with my friend in champ select I one day asked him "Jinx, or Gnar, Jinx Jinx, or Gnar" AND FOR THE LIFE OF EVERYONE I KNOW NONE OF US CAN FIGURE OUT WHAT THAT RHYTHM IS FROM its like (Jinx)(1 second pause)(or - Gnar) (.5 second pause)... (Jinx -Jinx)(.5 second pause)(or-Gnar)

If it helps we are 90s kids