Green’s Dictionary of Slang

1. (UK black) a very pretty young woman [? the rectilinearity of her features].

2004

Yungun ‘Today Was a Good Day’ 🎵 Did you see that, brer, did you see that [i.e. a pretty girl]. That was a four-by-four!

2. a whore [rhy. sl.].

2003

B. Dark Dirty Cockney Rhy. Sl.