look up any word, like sex:
 
1.
a stunning girl who usually knows everything about everything. might be a bit mad but in a good way.
i'm dating a girl called Sini.
by Baz March 25, 2003
 
2.
an asiatic person...usually a major babe
wow look at that tight sini
by Arnold April 12, 2004
 
3.
eon's bitch
Sini from Synthetic Execution.
by siniSUCKS March 01, 2004