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a mantha is derived from the name samantha bacci, its when a girl gives a coloured person a fat, juicy blowjob and loves it taking advantage of the abnormally large size of the coloured persons penis
i gave that guy the greatest mantha in my life last night. thats why i love coming to Jamaica
by lister7890 July 18, 2011
nick-name or shortened version of "samantha". Often thought to be created by the parents and extremely annoying when heard often.
hey, mantha! come eat your dinner!
by samisthebestdancerever May 16, 2007