transcript:
cat mum: what's 6 times 7?
cat boy (making faces): 6 7!!!
cat mum: hilarious, as always. but actually ...?
cat boy: 42
cat mum: 6 x 7 - 6 7 - is 42?!
cat boy: yeah ... so?
cat mum (making faces): that means 6 7 is the answer to the ultimate question of life, the universe and everything!
cat boy: daddy! mommy's being weird again!
cat dad: aww, you see son, - your mommy is just a huge dork!
cat mum: history doesn't repeat itself, but it rhymes!
This is just what I've heard, but apparently 67 comes from a rap song called Doot Doot by Skrilla. The 67 is a reference to the 10-67 police code for a report of death.
Allegedly. I doubt the kids are saying it for any reason though.
I heard it was the height of some basketball player.