sextinct 

having become too old to engage in sexual intercourse

Bill's age-induced erectile dysfunction rendered him sextinct, much to his wife's chagrin.

sextinct by Facerock February 4, 2008

Sextination 

(n) a somewhat private, public place visited by couples for the purpose of coitus.

"I heard Norman took Abby to the coat closet...it’s the perfect sextination”

Sextination by Chookie June 11, 2006

Sextination 

A Sextination is a designated place to have sex. It is a private lair that you convince or lure the opposite sex into.

I have a Sextination in mind for her. Whether it's my bed or the back of my Dodge Shadow.

Sextination by CobbySquared February 5, 2012