Why do people say for the love of pete?

The phrase "for the love of Pete" is an expression of exasperation or frustration, often used to emphasize a plea for understanding or patience. Its origins are somewhat unclear, but it may be a euphemism for "for the love of God," substituting a more benign name to avoid blasphemy. The use of "Pete" could refer to St. Peter, a common figure in Christian tradition. Overall, the phrase serves as a way to convey strong emotion without resorting to profanity.