A Hindi/Urdu/Punjabi slang for an uncultured, immoral, petty, lowlife, cheapskate.
Made by joining 'Tatti'(shit) and 'Maar'(to throw). Grammatically translates to 'Shit-throw' which intends to convey that the person deserves to be struck upon by shit..deserves to have shit thrown on their face.
Geetu: Kaun hain ye sab log?
(Who are all these people?)
Babu: Bas Bhogal ke kuchh Tattimaar hain.
(Just some Tattimaars from Bhogal.)