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!"