in a New York minute : very quickly
I would sell that car in a New York minute if the right offer came along.
To go Dutch: to split the bill in a restaurant between everyone who ate together.
‘Sally said she wouldn’t let a man pay for her meal on a first date. She prefers to go Dutch.’
Dutch courage:drinking a little alcohol to give you courage before you have to do something.
‘I think I’ll have a glass of whiskey for Dutch courage before I ask that girl if she wants to dance with me.’
It’s all Greek to me – this phrase is used when don’t understand or have no knowledge on a topic.
‘I tried to watch a TV show about physics last night, but I gave up. It was all Greek to me.’
Chinese whispers – It is often used as a metaphor for mistakes and inaccurate information which comes from rumours or gossip.
‘All this talk about the President resigning is just Chinese whispers. There’s no truth to this rumour at all,’
Pardon my French – This expression is used to apologise usually before, or after, we say something rude or impolite: a swear word.
‘If you’ll pardon my French, I think he’s a *!
A Mexican Standoff –This is expression is used when two groups can not agree on what to do next. Often used to describe a situation in business where there is gridlock.
‘There seems to be a Mexican standoff in the talks as neither the buyer or seller can agree on a price.’
A Young Turk – used to describe a young rebel who is part of a group/organization and can’t be controlled.
'I was a bit of a young Turk in the past, but I’ve calmed down a lot nowadays.Slow boat to china: something that is very slow and takes a long period
Scotch mist: something not existing and only imagined.
Like Chinese arithmetic: something that is very complicated to understand.
Indian file: one after another.
Perfidious Albion: not trustworthy.
Indian summer: warmer weather condition.
Good Samaritan: A person who is really helpful.
to do with the word [country]:
http://idioms.thefreedictionary.com/country