A condition that occurs when someone is chunky enough, a bra will sink into their back fat forcing unsightly flaps of skin to protrude over their bra strap creating a floppy "boob-like" formation in their shoulder-blade region. This condition is well documented in smaller towns where there are ample supplies of bacon. It has also been known to correlate directly to a FUPA.

That bitch must be trying to counter-balance her Double D breasts with her C Back Boobies.

Back Boobies by Narcolepticjay August 28, 2006

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Slap-back Booty

The type of ass that when you slap it, the jiggles make it feel like the ass slaps your hand back

Yo, Sydney got an ass though.
Yeah, I heard she got that Slap-back Booty.
Hell yeah, my hands still stingin from it bro.

Slap-back Booty by Trojanman Murphy October 2, 2013

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back-boobs

When someones shoulder blades are sticking out of their back in a way where they look like boobs/breasts.

This could either happen when they are stretching or standing in a awkward position, or when someone is rather skinny.

On the other hand, it might also refer to people who are obese and have pouches of fat on their back beside their shoulder blades that have the shape of boobs.

Eg1: Elle is becoming so skinny. Yesterday I saw her stretching in the locker room and from the back she looked like she had back-boobs

Eg2: Roohx could you please PhotoShop my back, my shoulders look weird. I look like I have back boobs.

Eg3: Poor thing, she really should wear such tight shirts when shes that large, her back boobs are really popping out there.

back-boobs by MrBigG August 3, 2011

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Back Boobs

When an individual is so obese that when viewed from the rear the rolls make it look like there is a set of tits on thier back.

I was in wal-mart the other day and I was walking behind a chick so fat she had DD size back boobs.

Back Boobs by The Haagimus October 23, 2009

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