Cross Pollination 

When picking your nose, you pick the left nostril, then you pick the right nostril (with the same finger), transferring a booger from one nostril to the other.

When picking my nose, I was Cross Pollinating and accidentally put a booger in my other nostril.

Through Cross Pollination I accidentally put a booger from my left nostril into my right nostril.

Cross Pollination by Mike Toshler April 21, 2015

Cross Pollination 

Cross pollination occurs when, during a threesome with one male and two females, the male has anal sex with one girl and then puts his penis in the other girls mouth. He then puts his penis in that girls ass and then into the other girls mouth.

John is having a threesome with Jane and Crystal. He puts his penis in Crystal's ass then into Jane's mouth. He then puts his penis in Jane's ass and then into Crystal's mouth thus causing cross pollination between Jane's ass and Crystal's mouth and Crystal's ass and Jane's mouth.

Cross Pollination by Gmcd43 October 30, 2012

Cross Pollination 

Figure A and B are brother and sister, or related in some way. Figure A dates or hooks up with Figure C while Figure B goes out or hooks up with figure D. Some time later, Figure C and Figure D hook up as well. This mixing of juices is called Cross Pollination, and is generally looked down upon in a modern day society.

Dude, they totally cross pollinated... cross Pollination is gross... I just really threw up a little in that cup.

Cross Pollination by ottawabu April 22, 2009

cross pollination 

To knock-off (bang, screw)a sibling's partner.

"Hey bro! Your girlfriend and I indulged is some cross pollination. Sorry mate, it just happened"

cross pollination by Hardman13 September 1, 2015

cross-pollination

When you introduce a friend from one group to a friend from another group, and they become autonomous friends, no longing requiring your services to hang out. Not necessarily a bad thing, but can be disastrous if left unchecked.

Dude 1: Dude, did you hear that Joe was hanging with Jane now?

Dude 2: Yeah dude. I introduced them a week ago and they don't even call me to chill anymore. Serious cross-pollination.

cross-pollination by Soren Santos September 18, 2008

Cross-pollination

To expell flatulence directly onto the skin or clothing of another person.

He lifted the small redneck behind his back and soiled his uniform using the cross-pollination technique.

Cross-pollination by spankmasterflash 5000 September 25, 2010

cross-pollination

When you introduce a friend from one group to a friend from another group, and they become autonomous friends, no longing requiring your services to hang out. Not necessarily a bad thing, but can be disastrous if left unchecked.

Dude 1: Dude, did you hear that Joe was hanging with Jane now?

Dude 2: Yeah dude. I introduced them a week ago and they don't even call me to chill anymore. Serious cross-pollination.

cross-pollination by Soren Santos September 17, 2008