There's a 14yo in eldest's group at gymnastics that loves to bust than one out quite regularly. One of my boys (aged 8) started up recently when the groups were close to each other (different levels so we move into different areas but are occasionally adjacent) and both of them started up and eldest yelled out I'LL THROW HIM AT YOU or maybe it was I'LL THROW YOU AT HIM, basically he was threatening to throw the older one at the younger one XD)
The fun I had was telling the older one that I would add that much time to his vault run if he ran chanting "6 7" again XD (context in case it wasn't clear, one of the vault exercises I do is timing how fast they run from the number 16 on the vault run to a two foot jump on the beatboard).
And one of my other boys told me that if anyone said "6 7" in his class at school the teacher made them multiply it.
One of eldest's friends is training to be a teacher and showed us how many 6 7s he could cram into a short conversation, the guy is pretty witty so it was both unsurprising and what the hell XD He likes to try to keep on top of things as well as with the more annoying things he says he wins either way as when he gets in on it, he becomes cool or it becomes lame and the kids stop doing it XD
ps just for funsies I set the vote value to 0.067, which was sadly just off 67% for me XP