Saddlebacking - the term for the phenomenon of Christian teens engaging in unprotected anal sex in order to preserve their virginities. Named after Saddleback Churh, home of the Reverend Rick Warren, who is a proponent of abstinence education, the "sex ed" that has convinced so many Christian girls and boys that buttfucking isn't actually sex.
Saddlebacking - After attending the Purity Ball, Heather and Bill saddlebacked all night because she's saving herself for marriage.
The fresh mix of lube, blood and fecal matter that is the by-product of nubile Christians engaging in unprotected anal sex to preserve their virginity.
When a woman with Big Country Titties takes off her bra and lies on her back, her sagging tits are pulled by gravity to either side of her torso, thus they look like a pair of saddlebags on a horse and resemble mammery glands but little.
Tit Lover#1: Dude! How'd the cans look on the one you took home last night?
Tit Lover#2: Meh, she got naked, on her back, and blamo! Saddlebag titties! After that, my wobbly bits went soft on me.
Tit Lover#1: For fucks sake man! All you had to do was cup them back into Big Country Titties with your hands fool!