999 girl Share definition Flag 999 girl- you keep her number, but only ring her in emergencyin the US of A she'd be a 911 girl don't like her much but she fucks- I'll keep her as a 999 girl 999 girl by chilli ring November 5, 2009 0 0 Get merch Get the 999 girl mug. Buy Now — $32.95 See more merch