"Oh, sorry, was that your head?" is a red text modifier on weapons in Borderlands 2
Found on the following red text weapon: Deadshot Stomper, (or any other version of the Jakobs Stomper Assault Rifles) which you get from Marcus for completing the side mission "Hungry Like the Skag"
Grants Weapon Effects[edit]
Custom Weapon Skin
+72% Critical Hit Damage