Xtard noun2 •(vulgar, offensive) A user or supporter of Xbox products.Top five sellers on Amazon DVD list ALL BLU-RAY. Have to go past #50 just to find an HD DVD disc. ¶ Face it Xtards, it's OVER. Blu-Ray wins. — 2008 •(vulgar, offensive) A person that refers to Twitter as X. formsXtards