Wiktionary
all the tea in china
n. (context idiomatic hyperbole English) Something very valuable or priceless.
Wikipedia
All the Tea in China
(Not For) All the Tea in China may refer to:
Usage examples of "all the tea in china".
I'd never have dared say no to Grant at any time, and I wouldn't have missed watching him and Macmahon in a state of mutual bewilderment for all the tea in China.
Cause I wouldnt want to be like you, for all the tea in China, because youre the biggest liar from here to Frenchmens Bay and back-telling people that the Infant Jesus bought you that bike.
He would not have answered that question for all the tea in China.