Ok. Here's one that has been bugging me enough to go to the urban dictionary and look it up!
YMMV
Literally, "Your Mileage May Vary," coming from the small print in (American?) automobile commercials in the 70's and 80's. It has come to mean an acknowledgement that the opinion of the poster may not be shared by everyone.
I thought Weezer's later albums were better than their earlier works, but YMMV.