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2 definitions by sjb#7

 
1.
vietnamese for sorry
when you bang your mate's sister & he find out "SIN LOI"
by sjb#7 May 24, 2007
 
2.
when you bang your mate's girl & not remember doing it
A where'd you get that black eye from?
B i matty cac'd someone
by sjb#7 June 14, 2007