not mean diddly AmE
not mean diddly squat AmE

"The formal announcement doesn't mean diddly," Ogle said.

Being it was murder, he was required to wear a homing bracelet, but that doesn't mean diddly if he knew anything about electronics.

But if you lose your looks, all the money in the world won't mean diddly unless it can somehow buy them back.

Which means diddly squat folks !

So I don't think holding office per se means diddly.

"Maybe it means squat, even if it doesn't mean diddly."

Jus cause they cut the bone outta yours dont mean diddly to me.

"Before doesn't mean diddly."

"I use this" and "I do that" doesnt mean diddly.

The American slang phrase bo diddly meaning "absolutely nothing" goes back possibly to the early 20th century or earlier.