The Guitar Question Thread.

[Knives]

I have a question about a guitar technique, and I figured some other people did too, so I made this thread.
Here is my question:
In a tab like the one below:
E|----------------------|
B|----------------------|
G|-------------12b14r12-|
D|-------11-12----------|
A|----------------------|
D|-0-0-0----------------|
I know that r means return, but I don't know what return means...can anyone tell me what it means?
Thanks

[Htom Sirveaux]

Well the "b" means "bend". So you bend G on the 12th fret up to what the 14th fret would sound like, then "return" it to the original position.

[Knives]

Ok, thanks!