What is Xlg?
A girl who at one point was an LG, but has reached the age of 18 (or at least the age of consent). However, girls of any given age can only be deemed "lgs" by guys who knew them when they were LGS.
Yo, have you seen whats her face lately? The LG who loves giving brains?
Yea man, she's driving herself around now, total XLG status... now we can get brains without being scared of jail... SWEET!!!