FIRRIB

Frenzy and Rumble. Or is that Rumble and Frenzy?

RIBFIR stands for "Rumble is blue, Frenzy is red". Likewise, FIBRIR means "Frenzy is blue, Rumble is red". (The forms FIRRIB and RIRFIB are also known.)

The entire debate exists because "RIBFIR" in the American G1 cartoon (although the character is actually primarily a shade of purple), but "FIBRIR" in the toyline, comics, and the Japanese G1 dub, and even the US cartoon bible.