natural family planning 

Anal sex of the horny Catholic variety.

"Hey babe, you down for some natural family planning tonight? You definitely won't get pregnant."

natural family planning by Krissy Johnson September 22, 2005

Natural Instinct 

Natural Instinct is a Magazine and Website that celebrates Marijuana Legalization and Naturally Beautiful Women.

Natural Instinct Magazines' website is www.naturalinstinct.us

Natural Instinct by Natural Instinct March 12, 2011

Natural-Selection 

An ass-kicking Half-Life Mod

No way dude, CS is so gay, lets play some Natural Selection!

Natural-Selection by Duff-Man February 12, 2003

natural-born 

having excellent talent or skill (so much that the person might as well be born with it)

That guy is a natural-born speaker.

natural-born by Light Joker January 3, 2007

marine natural resources 

the marine habitat or a area in the marine enviroment

such as a keelp forest or coral reef

marine natural resources by Swatic January 23, 2004

naturalosity 

the state of being confident rocking natural hair, embracing it, and love yourself in your natural form.

Your naturalosity makes me want to go natural too.

naturalosity by Nashae January 19, 2010

naturing 

the act of exploring in nature

My son, on returning home last Sunday afternoon after a morning of exploring at a local nature park, said to his mother: "I’m tired. I’ve been naturing all day."

naturing by darwinsbulldog July 5, 2012