[DonHopkins]

It's not about the roots of the English words. The pun is that x and y are relatively uncommon letters in English, that when they appear before the "ing" suffix, it's easy to accidentally parse them as relatively common Chinese words.

The "xinger" is that "hoaxing" has a 腥: "fishy (smell)". ;) [1]

[1] http://www.cantonese.sheik.co.uk/dictionary/characters/2962/

[laumars]

ah sorry. I mistook your e-mail to mean they would literally have originated from China. My apologies.