do a foreigner 

to do foreigners (or a foreigner): Common British slang for unofficial work.
(see entry foreigners by Cree$e:) unofficial work often making use of company equipment/ time/ premises but solely for personal gain, unrelated to the interests of the company and/or tax department. With notable exceptions, doing Foreigners is a fairly accepted part of British working life and, depending on the workplace, can even be done with managemental consent.

I'm not coming to the pub this lunchtime, I'm staying at work to do a foreigner for a mate of mine.

do a foreigner by EagerestTranslator January 7, 2012

do a foreign moment 

To start speaking a foreign language that the person being addressed doesn't, or is not likely to, understand. Comes in very handy when you're trying to shake off panhandlers and other people with whom you don't to get involved.

A group of Arab kids came up to me and asked me if they wanted me to smoke a joint. I wanted to do a foreign moment, so I just told them, "nye govoryu po-angliyskiy!". That's Russian for "I don't speak English!".

do a foreign moment by pentozali November 24, 2009

do a foreign moment 

To start speaking a foreign language that the person being addressed doesn't, or is not likely to, understand. Comes in very handy when you're trying to shake off panhandlers and other people with whom you don't want to get involved.

A group of Arab kids came up to me and asked me if they wanted me to smoke a joint. I wanted to do a foreign moment, so I just told them, "nye govoryu po-angliyskiy!". That's Russian for "I don't speak English!".

do a foreign moment by pentozali November 24, 2009