(nonstandard, humorous) Comparative form of good: more good. (nonstandard, humorous) Nominalization of good.

How do you use the word gooder in a sentence?

Fred mentioned she was a social minded do-gooder type citizen. It was unclear if this action was prompted by Patsy Boyd herself or just some do-gooder trying to clear her desk of problems. She was a do-gooder and a society lady, married a minister.

Is gooder correct?

'Gooder' is not a word. Some people may use the term 'gooder' as a slang word meaning 'more good,' but it is not actually a word.