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.
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
Tali: "I did like a million pieces of work today!"
Tom: "Safe one babes"
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.