1) Similar to a Lai
2) A girl who sleeps with other girls
3) Someone who sings cheesy songs (i.e. Barbie Girl by Aqua)
Ivy: Hey check out that LaiYing standing there
Heather: Yeah she sleeps with all the girls
A term use in Tokyo for beautiful Chinese girls that go around turning heads (sometimes truncated to lai)
Chen-chi were laiying last night!!