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1.
a person having the same name as another.
name given by family member to newborn to hold that one special name up high as a god parent or like wise
a person named after another
i shaggyrat has a namesake nephews has a parent that named him after me because iam the special one in family lol
by shaggyrat January 15, 2010
 
2.
{pronounced: na-ma-sa-kay}

The Official Name For Your Penis

A.K.A. Your Middle Name
Brenden Mitchel Sharp: Hey baby what's up?
Random Ho: Not much.... Can I play with Mitchel?
Brenden Mitchel Sharp: ooooohhhhhhhh yeah!
Random Ho: I love your namesake
by Jordan And Brenden December 06, 2007