Backpoon 

The anal region in sex.

Bend over, time to dip into the backpoon!

Backpoon by I, Wreckerrr November 9, 2016

backpoo 

n. Soiling of the back with feces, typically used in the context of an infant who has overfilled a diaper while supine. May be considered a variant of code brown.

Mom: Sweetie, can you change the baby? He has backpoo.
Dad: Sure, hon. That's a whole outfit change he'll be wanting.

backpoo by D@d June 29, 2007

Backspoon 

The opposite of spooning. Laying or sleeping next to someone with only your butts touching.

Jack was such a D, he backspooned me the whole night.

Backspoon by JBROCK January 20, 2009

Wessex Backpoo-Hedgehog 

the act of sex when you shit on your partners back and tell him/her that this cute little hedgehog lives there from now on

Ist it ok if i give you a wessex backpoo-hedgehog tonight? i have already bought the salt-sticks

Wessex Backpoo-Hedgehog by Nascimento June 4, 2018