beetle back

The back of a morbidly obese person; due to the person's rotund shape and cleavage created by fat on both the spine and shoulder blades. Similar to "back boobs"

Mary Jo spent 30 minutes hunting around the house for her keys when she heard her fat roommate jingling as she thudded by. She realized that her keys were lodged in her roomy's beetle back. (shudders and plucks them out)

by seanomatopoeia December 5, 2010

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Get the beetle backmug.

Sack to back

A long lick starting at the sack and continuing through the ass which ends at the middle back

Hey Timmy if you aren't home by 9:00 your finna get a sack to back

by Sacktacious May 27, 2018

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Get the Sack to backmug.

Back in Three

To inquire about one's preference for anal sex in the third encounter(conversation) with said person. Then, to have anal sex shortly, thereafter. Immediately would be preferable, without any intermediate conversations. Male to male use of this is not condonned, but words are words, so if they adopt it, so be it, but this case is refering to guy to girl; girl to guy; or girl to girl. Unless, the male to male conversation is asking about the said male's preference for anal sex with other women, and no anal sex between the males must follow.

Todd: So are you gonna try to go through the backdoor with Jackie.
Derek: I've only spoken to her twice!
Todd: Bro, just pull a "Back in Three"

by Horny John July 4, 2008

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Get the Back in Threemug.

Back Mouth

When, during oral sex, the penis only reaches the back of the mouth & doesn't ever enter the throat. This could be due to the penis being too short or the girl refusing to take it deeper.

"She's terrible at blow jobs... She tried to give me head, but she refused to deep throat me, I got some 'back mouth' at best!"

by Law-BooGiE January 8, 2012

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