Codger and Odd fish

Codger noun - A person of odd or whimsical habits.

Odd fish and codger are semantically related. In some cases you can replace phrase "Odd fish" with "Codger", this terms are similar.

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

Codger and odd fish are semantically related. Sometimes you can use "Codger" instead a noun phrase "Odd fish".