Term given to a girl or group of girls who are under the age of
consent, and socialise with older guys. A group of 13-15 year
old girls who hang around with a group of
16-18 lads would be perfectly described as illegalites.
"Man, Smithy drank 3 litres of cider on Friday
night then poked that illegialite around the back of the shops, what a
legend!"
or
"Thoose illegalites are a bunch of sluts
Mikey, but i love it!"