Ding-a-ling and Odd fellow

Ding-a-ling noun - A person who lacks good sense or judgment.

Odd fellow and ding-a-ling are semantically related. In some cases you can use "Odd fellow" instead a noun phrase "Ding-a-ling".

Odd fellow noun - Someone regarded as eccentric or crazy and standing out from a group.

Ding-a-ling and odd fellow are semantically related. Sometimes you can use "Ding-a-ling" instead a noun phrase "Odd fellow".