Image via Postage Stamp Chat Board
Zhuang is a language mainly spoken in China, belonging to the Tai language family. There are about 1,980,000 speakers (2007). (source) The Zhuang ethnic group is the largest minority in China.
Zhuang speakers have an interesting way of expressing gratitude. To say "thank you", one literally says "(I) beg for (your) pork" which in Zhuang is gyo'mbaiq [k(h)jo.?baaj], making up of gyo "to beg" and mbaiq "pork".
The Zhuang "thank you" is an idiom deriving from the Zhuang culture and tradition. When one is invited to a celebration, he gives pork to the host who in return gives a portion of the pork back before the guest leaves the party. By doing this, the host is expressing his gratitude for the guest's kindness.
Just for fun: What will learners of Zhuang who do not eat pork think of this phrase?
Information provided by Hienjningz Luengz via Facebook.