OMFG WTF STFU GTFO N00B is the largest possible insult able to be used against old people who don't follow abbreviations in such a manner.

Standing for Oh my fucking god, shut the fuck up, get the fuck out n00b.

People over the age of thirty are baffled to what this even means when said like so.
Kid: Mother, can you make me pancakes for breakfast?
Mother: No, i'm already making you toast
Kid: OMFG WTF STFU GTFO N00B
Mother: ???
by maxmoefoe May 30, 2010
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