For the love of Pete, can we just pick a restaurant and stop searching? I am hungry. This phrase and phrases like "for Pete's sake" are euphemisms for the phrases "for the love of God/Christ" or "for God's/Christ's sake" and hail from a time when those phases were considered blasphemous. Nowadays phrases like "for the love of God" are commonly used, but the euphemisms are still used. Why Pete? Most likely it is a reference to the catholic Saint Peter.