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1.
A person taking up residency in another country.

Now most commonly used as term for those working in companies outside of their home country such as those with regional position and their family.
1. She got offered a regional position in her company's head office in Singapore making here an expat in that tiny city-state.

2. Our new neighbor is an expatriate family from Argentina, family of the newly appointed Argentine Diplomat.
by cl_dan June 27, 2005
 
2.
Short for Expatriate - somebody who has left his or her homeland to live or work in another country, usually for a long period of time.

OR my version:

Expat in Dubai: constantly complaining and rude git with an ego the size of Asia. Other characteristics includes trying to live a lavish lifestyle on a meagre salary and continous road rage
if one of these non-natives gives you lip:

'hey a**hole, don't you get all expat on me!'

by annoyed by expats April 25, 2006
 
3.
a person working outside their own country, sometimes on a fat corporate contract, sometimes as a foreign expert, sometimes just as an English teacher.

Often their pay is considerably higher than the locals and they live a life of wanton pleasure while working as little as possible.

Other times, like as an English teacher, they live better than locals but not by much and spend their leisure time searching for the best deals on local beer.

Female ex-pats tend not to get laid and grudgingly accept celibacy. Largely because they don't like the locals and the male ex-pats aren't interested in them.

The male ex-pats often receive underserved hero/rock star status from the locals, especially in Asia, and get more local pussy than they know what to do with. Which is why they ignore the ex-pat females.
Dude #1: "Hey mate, why is that ex-pat chick always so bitter and grouchy?"
Dude #2: "Because she hasn't had sex since she arrived in Asia."
Dude #1 "Really? Damn, I'm in ex-pat heaven with all the local action I'm getting. I couldn't get laid to save my life back in the UK".
by Graham Spider August 05, 2009
 
4.
An expatriate.
I moved to Thailand from America, making me an expat.
by Drew3178 April 12, 2004
 
5.
A migrant, generally from an English speaking country, with more money and/or attitude than the average citizen.
The locals should learn English so they can communicate with the expat community.
by richmx2 April 15, 2013