Amazing

Total bullshit.

Some etiquette courses for military officers have suggested using "That's amazing!" when one is tempted to say "Bullshit!"

Boss: "I am a millionaire. I have a mansion and a yacht."

Underling: "That's amazing, boss! I'd really like to hear more about both!"

DDJS

Didn't do jack shit/doesn't do jack shit. An engineering acronym.

Kirk: "Scotty, how far are we on replacing the dilithium crystals?"
Scotty: "DDJS. Ship's Engineering is on strike until you knock off the joyrides."

randy cummings

Vodka and Crystal Light. Born of the outdoors but classy enough for yer mom.

"Bartender, I'll have a Randy Cummings."
"Sure Mom, here you go."