Fertilization

You put your lips together in an interlocking dance, while one member of the party spits and gags up their own egg into their partner's mouth womb. At that moment, the other participating fertilizee will fertilize the egg before relocating the now fertilized egg into their mouth womb and back into the egg chamber

Person A: Let's partake in Fertilization
Person B: Daddy Chill

fertile ground

Ejaculating into the dirt or rocks while hiking or camping.

I took Jessica up to the cascades and got fertile ground after a hike.

fertilized butter

Either when you find something greasy, slimy, or buttery on the ground, covered in dust and dirt. Or when you slip for a far distance or a long time continuously.

"That kid over there just slipped on fertilized butter!"

Fertility train

A group of 5 or more guys switch off having unprotected sex with a girl then try to find out who’s the father.

Shit man we all got drunk and and ran the fertility train through Heather.