tiptop vs sexual activity

tiptop and sexual activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
tiptop	Yes	Yes	No	No
sexual activity	Yes	No	No	No

tiptop (noun)	sexual activity (noun)
the extreme top or summit	activities associated with sexual intercourse
the highest level or degree attainable; the highest stage of development

tiptop (adjective)	sexual activity (adjective)
of the highest quality