"Je suis enchante, Ou est le biblioteque?" is a red text modifier on weapons in Borderlands 2
Found on the following red text weapon: Dandy Chere-amie, (or any other version of the Maliwan Chere-amie Sniper Rifles) which you get as a reward for completing the fifth round of Hyperion Slaughter
The red text translates from french to: "I am delighted. Where is the library?"
Grants Weapon Effects
Transfusion (Damaging the enemy causes the user to heal)