A more polite way to refer to a woman's anus, or to refer to a woman's anus while in the company of children, elderly, or parents.
From this angle I have a really good perspective of your backyard bird.
Do you think her backyard bird is bleached?
The other night I got my second knuckle into her backyard bird.
The act of blinking your eyelashes on ones butthole to create a fluttering, tickle effect, preferably while performing oral sex.
I can’t wait to backyard bird your ass.
That back yard birding was amazing.
Oooo, backyard bird me baby.
Hehehe, backyard birding tickles.