Usually said after a noun, is sex means "It's so fucking good." the word came from the similarity of the great feeling you recieve when having sex. So when you say "________ is sex" it means, that whatever it is is as good as sex gets itself.
Synonyms for is sex
On this page, you will find 30 slang terms related to is sex. Some of the top words include: wiggle, sexual, beating, Yaz, henus, and 25 more.