Dear God No. 

An exclamation used to express your utter repudiation of a person, place, thing, or idea. You are insinuating that if you could send a letter to God, the contents would entirely be "No".

To: Heaven, 777
From: Somewhere in North America, 12345

Dear God No.

Not So Sincerely,
Sender

Dear God No. by Psychoticlife September 28, 2020

Dear god, NO god! 

The expression to use when utter horrifying events, in a movie or real life, leave you with a horrifying feeling and you wish nothing more than for god to erase that event from existence.

Logan: DEAR GOD, NO GOD! aj: *gag noise* mike: what!?. . . Oh GOD! they all watch as a fat man gets gorilla masked!

Dear god, NO god! by ajgamerguy July 11, 2007