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3.
A variant of OMFG but with zombies, usually used in a one word sentence.
OMFGZ! OMFGZ. OMF-gurgahhadghdh Brains.
by shicknannon@gmail.com December 15, 2009
 
1.
OMFGZ is an exaggeration of OMFG, meaning Oh my fucking god.
You use it to impersonate an over enthousiastic person.
Alan: Yay I can't wait to go to Rome it's gonna be so cool omg omg
You: OMFGZ YA T3H R0ME IZ DA BEZT ROFLOL
by Nesco May 23, 2007
 
2.
Phrase meaning oh my fucking god.
The "z" is just used to over exagerate the phrase.
Usually used by Paul Griffiths
Paul: I own babycakes
Loser: what's babycakes
Paul: Omfgz!
by daniel$cott March 02, 2008