dadgum - What rednecks say when they’re too dumb to think of anything

What rednecks say when they’re too dumb to think of anything else. Like a TN senator who uses it more than a person uses the word 'hello.'

Dadgum! That war is worse than my dad’s face.

Dadgum! I got gumed and I still love my dad.

Dadgum! I hate Nascar and I hate my dad’s face.