What does YMMV mean?
Usually these shortcut words are easy to figure out from the context. The tougher ones tend to fly into my mind while I’m trying to walk and chew gum at the same time.
But YMMV has baffled me for weeks.
Anyone have some gum?
Your Mileage May Vary.
IOW, you may disagree with me.
Also note that the meaning of YMMV and other oft-used abbreviations can be found in a number of earlier threads, including:
[ul][li]Attn Newcomers - Abbreviations List, started by 2sense,[/li][li]Acronyms (abbreviations?), started by E1skeptic, and[/li][li]an earlier ATTN Newcomers - Abbreviation List, also started by 2sense.[/ul][/li]Tuba, would you consider periodically bumping one of these threads to the top? 'Twould be mighty useful, IMHO.
For the thoughtful, considerate poster who respects the opinions of others: Your Mileage May Vary
For the egocentric person who is convinced he is right and that everyone has the right to his opinion: : You Make Me Vomit
[adapted from a useful flame of many months ago] Feel free to use. 
I think we ought to add this information to the FAQ.
Lemme lean on you folks a little. Please drop me an email of all the information, links, etc., anything that you believe needs to be in a central location. We’re gonna redo the FAQ soon anyway, let’s do it right.
I’d really appreciate your help on this.
your humble TubaDiva
Administrator