This is a confused attempt to combine the word 'safe' with the phrase 'nice one'. Usually blurted out in pressure situations in the company of intimidating individuals.
by Aliensuns May 28, 2009
An almalgamation of the phrases 'safe' and 'nice one' this common used phrase has it's roots in Cambridge surburbia, but is found in all areas of the UK
by twg1993 April 12, 2011