something of a ... Definition

something
pronoun

1. A thing not known or not stated.

Example: Take something to eat
2. An amount or number not known or not stated.

Example: something short of 1 000 people
Example: aged about 40 something
3. A person or thing of importance.

Example: make something of oneself
4. A certain truth or value.

Example: There is something in what you say
5. colloq
An impressive person or thing
Example: That meal was really something!
Example: He really is something else!
Form: something else (also)

adverb

1. To some degree; rather.

Example: The garden looks something like a scrapyard

Idiom: something of a ...

A ... to some extent.
Example: She's something of a local celebrity

Idiom: something rotten, terrible, awful

To an extreme degree.
Example: He teased me something rotten