Noodled Some Aussie 20cent Coins - Found 2 With Cuds.

Yeah they are.

A cud on a coin is a damaged area resembling a blob on the surface of a coin. The cud is raised above the field, and it obliterates the device or inscription where it appears. Cuds are the result of die cracks or die breaks which have become severe. They can also form from die chips where part of the die surface has become damaged and broken away.

Some experts in the coin error-variety hobby insist that for the blob to be called a cud, the damaged part of the die must include part of the edge of the die. Although this is the purest definition, in common numismatic communications you'll see the term "cud" used to describe the blob created by any die chip or serious die crack, regardless of its placement on the die or coin.

I've looked up the definition of a cud relating to the Australian experience: from Rennicks Australian Pre-Decimal & Decimal Coin Errors 1st Edition
CUD ( A three letter acronym meaning "Coin Under Developed")
A lump on a coin, struck by a die from which a piece has broken off.
From the same glossary a die chip is a piece which breaks off of a die.
Metal flowing into the hole created by the die chip creates a lump, which like a blob,is another form of CUD.

Looking at Error-ref.com
Die Chip:
Definition: A small piece (less than 4 square millimeters) that falls out of the die face and has no direct connection to the design rim. The missing piece leaves a void in the die face into which coin metal flows. As a result, the coin shows a featureless lump in the affected area.

Guess it all depends on which forum you're on.

Thanks for your help and support. It truly embodies the values of CCF

Wow. Some of The attitude from more senior members beggars belief! A coin sharing forum is about sharing I would have thought. Not to worry ttk. The yanks can't even spell colour correctly! Fight fight fight. Lol.

Here in Australia, everyone calls any die chip a "cud". It's often spelled "CUD", with all-caps as if it were an acronym, though it actually isn't (sorry, but that Renniks quote about CUD standing for "coin under developed" is just plain ridiculous, an obvious folk etymology - a die chip is not "under development" in any possible sense of that phrase).

This Australian mis-usage of the term is largely due to the late Ian McConnelly, an enthusiastic and prolific writer about errors and varieties in the Australian coin magazines for several decades, who was notoriously lax when it came to the established definitions of error terms. He basically invented his own terminology, which was only loosely based on the established terminology, and since he was the only person writing about errors, everyone who became interested in errors through his articles copied him. And yes, that Renniks book was also edited by McConnelly, which is why it perpetuates his bogus terminology.

This also explains why even experienced collectors get the terms "error" and "variety" in Australia mixed up. McConnelly persisted in using the terms interchangeably, particularly with things that were clearly classifiable as "errors" (like bitten rims, mis-strikes and brockages), calling them "varieties" instead. Of course, over on eBay, "errors" are perceived as being more valuable than "varieties", so that word is used instead.

pew pew

Not sure what sort of responses you were looking for ttkoo because your post appeared to be more along the line of a 'show and tell' rather than asking for input.