McNookie will be a slang term for the Drug PT 141, its likely to hit the shelves of pharmacys in about 3 years from now.
PT 141 is a drug, well, nasal spray, to help people with sexual dysfuction.
Basically, it gets a woman horny
withing 15 minutes, whereas the usual time taken averages 20.
Or so I've heard.
Modern sex, supposedly needs to be faster, better and quicker, therefore, Palatin Technologies have been working on this PT 141 drug, currently still being tested.
"Hey, I'm gonna get my wife to mcnookie, then we can have quick sex before breakfast!"