tiptop vs sexual practice

tiptop and sexual practice both are nouns.

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

tiptop (noun)	sexual practice (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 practice (adjective)
of the highest quality