FULL BEND: Play the note and push the string up to the tonal value of 2 frets. This means if you play the note on the 7th fret and bend up a "Full" amount then the sound produced will be the equivalent top laying a note on the 9th fret.
Listen to a full bend
Bending Riff 1
This riff is using the 1st A Minor Pentatonic Scale
Listen to the full bend riff example