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1.
A German last name. Derived from "dweller".
Hello, Miss Martz.
by Spliffyy September 08, 2008
 
2.
A martz is a person who is hispanic (spic) and enjoys to have sexual relations with and/or date one of his friends stepsisters
Man im gettin sick of that martz always hangin around my sister
by thayes May 15, 2006