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1.
verb. to easily mold something that typically doesn't mold (i.e. hair), possibly with products. Or the combination of two items that have molded/melted together.
It's easier to melge my hair after a few days of not washing it.
by Lipes September 05, 2008
 
2.
Bulge (in a guy's pants). Synonymous with package or basket.
Nice melge!
Look at the melge on that stud!
by Topaquita November 09, 2006