As nouns the difference between terms and gooder
is that terms is while gooder is (nonstandard|humorous) nominalization of good.
As an adjective gooder is
(nonstandard|humorous) (good).
terms
English
Noun
(head)
Statistics
*
----
gooder
English
Adjective
(head)
(nonstandard, humorous) (good)
Usage notes
The correct comparative is (better)
See also
* do-gooder
Noun
(
en noun)
(nonstandard, humorous) nominalization of good
Usage notes
New England slang, as in: "You're a gooder, for taking care of your mom."
A parallel construction to oner, a nominalization of one, to mean "an outstanding person or thing."[http://www.thefreedictionary.com/oner]