not mean diddly

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not mean diddly

To not mean or be worth anything at all. I don't understand the first thing about computers, so these instructions don't mean diddly to me. Unless you give me something in writing, a promise of a pay raise doesn't mean diddly.
See also: diddly, mean, not

not mean diddly

AMERICAN, INFORMAL
If something does not mean diddly, it is completely unimportant. I have been playing this game for a long time and I know that one shot doesn't mean diddly.
See also: diddly, mean, not
References in periodicals archive ?
Without trust and the belief that you'll do what you say you're going to do, all the benefits, added value or discounts don't mean diddly squat.
Hopefully, they will realize that these belts don't mean diddly unless they put them on the line.