A phrase used by one Gandalf the
Grey, the famous, kindly wizard from the Lord of the Rings Trilogy. It is used during the Mines of Moria scene in the first in the trilogy, the Fellowship of the Ring.
Gandalf says it to Peregrin "Pippin" Took, to display his
anger and fustration directing at him for knocking a skeleton down a well, alerting the orcs of their whereabouts and putting the entire fellowship in danger once again.