Wiktionary
for crying out loud
adv. (context idiomatic colloquial euphemistic English) (non-gloss definition: Used to express frustration, exasperation, or annoyance).
Wikipedia
For Crying Out Loud
"For Crying Out Loud" is a song written by Jimmy Compton and Phil Wood, produced by Ron Haffkine and recorded by American country music artist Davis Daniel. It was released in August 1991 as the second single from his album Fighting Fire with Fire. The song reached number 13 on the Billboard Hot Country Singles & Tracks chart in November 1991.