In playing guitar tabs what is pull-off?

Assuming your right handed, it means you are not plucking the string with your right hand fingers or pick - if your using one. For example, place your first finger (left hand) on the first fret, first string. That is an "F" note. Keep your first finger there, while placing your third finger (same hand) on the third fret first string. That's a note of "G". Now, instead of plucking the string with the right hand, pull the first string with the third finger that you have on the third fret. In this way you are actually plucking the string with the third finger. Hope this makes sense to you. If I had to show you how to do this, it would take less than a second. Trying to explain it is much more difficult.

Viper1