noun (plural dillies)[usually in singular] North American informal
An excellent example of a particular type of person or thing: that’s a dilly of a breakfast recipe
More example sentences
- The nameless viewpoint racer is making 'one last run', and it's a dilly.
- At only $14.95 it's a dilly of a deal for this long sold-out series, previously available only in hardcover (if you could find it).
- This is their first effort to publish a shotshell reloading manual, and it's a dilly.