Mzansi is buzzing over a Namibian teacher's funny lesson, where he uses creative methods to teach prepositions, winning hearts across social media.

But for the logged-on masses, kids saying six-seven to everything has simply become a fact of life. And yes, that is pretty much it: People are just saying six-seven in a particular cadence...and that ...

According to Mr. Lindsay (and maybe your teens), “6-7” is being combined with “sendy.” ...