Common British slang for 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. This phrase is short for 'Foreigner Bashing,' for reasons unknown, but DOES NOT hold racist connotations in this context. 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.
1. A phrase used to describe an item (usually a commercial product) which is cheap, tacky, badly designed, old fashioned, poorly manufactured and/or characterised by a laughably obscure brand name.
NOTE: By coincidence, this phrase is semantically similar to the hip hop colloquialism gully, although the etymology is undoubtedly different.
While gully gully can be similar in meaning to some uses of gully and ghetto, it's chief meaning is wack.
2. A synonym for a crap training shoe.
1. "My gran bought me a gully gully watch for Christmas. I opened it and realised the wrapping paper was more likely to tell the right time!"
2. "When I was a kid my mom always made me wear gully gullies to play football in. They were called 'Run Team Pro Shaft 900' and they fell to bits after 2 days!"