What’s the ‘Taco trade’ talk on Wall Street about that’s annoyed Donald Trump so much?

A FEW WEEKS ago a Financial Times journalist coined a phrase which was duly taken up by Wall Street traders, and has since sparked fury from the US President: 'Taco trade' - with 'Taco' meaning Trump Always Chickens Out. When a reporter asked Trump (politely, mind you) what he thought about the phrase, which has found popularity amongst online finance bros, it would be an understatement to say he shot her down. "Don't ever say what you said. That's a nasty question, to me that's the nastiest question," he told her. The new trading jargon refers to Trump's now well-established…