1. 
   YMMV
   Your mileage may vary, details ...
   Found op http://www.cryer.co.uk/glossary/y/index.htm
   
   
2. 
   YMMV
   (In SMS-language:) your milage may vary
   Found op http://www.mantex.co.uk/samples/texting.htm
   
   
3. 
   YMMV
   your mileage may vary
   Found op http://www.archivemag.co.uk/
   
   
4. 
   YMMV
   Your mileage may vary
   Found op http://foldoc.org/YMMV
   
   
5. 
   YMMV
   Your Mileage May Vary
   Found op http://www.netlingo.com/acronyms.php
   
   

Tip: double click on a word to show its meaning.