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1.
Parts of the breast which don't quite fit into the bra. Can be preceded by a qualifier such as upper, lower or side.
Check out my upper lusbies! I think I need a bigger titsling.
by Dagzanboof May 10, 2003
 
2.
short white kid with glasses
wow that kid is a real lusby
by shamus December 01, 2003
 
3.
A smell, such as loose tuna
Does any one smell that lusby?
by Phil Daddy July 20, 2003
 
4.
an 18 year-old kid who has sex with men.
lusby LOVES the cock
by berserker July 15, 2003