frubbing 

Performing a back rub while simultaneously performing coitus with the recipient of the back rub (and coitus) lying face down.

A compound word of fucking and rubbing.

"Hey baby, you want to do some frubbing tonight?"

"Yea, my back hurts and I'm horny as hell!"

frubbing by Gnarly G January 11, 2012

Flubbing Your Nuts 

To joke about some thing to your cronies or family.

Girl: Hey I'm Pregnant.
Boy: WTF! No This Can't Be Possible!!!
Girl: Haha!! I'm Just Flubbing Your Nuts!
Boy: OMG! You Had Me Super Scared.

Flubbing Your Nuts by TheOriginalFlubber April 17, 2011

urban frubing 

to find used condom in public place and drink the spunk from it like u would a frube yoghurt

that mans been urban frubing

urban frubing by scottscott23 June 11, 2009

frobbing 

To spend excessive time on a computer surfing the net or otherwise investigating something of little consequence, just to satisfy your curiosity. It carries the connotation of masturbation. (used at MIT in the '70s)

Stop frobbing and get back to your work!

frobbing by frobber April 6, 2010

Fubbing

The act of sticking a finger up someone's bum during sex, either with their express request, reluctant permission, or (more amusingly) completely out of the blue.

Applies to both gay and straight.

Consider it a sort of polite alternative, or a beginner's version if you would, of fisting.

It comes from the acronym FUB - Finger Up Bum.
Derivatives like 'to fub', 'fubbed', 'well I'll be fubbed', 'fubstep' and so on are known to exist and are applicable according to context.

"I was having sex with this 8/10 girl yesterday and out of the blue, she starts fubbing me. No warning whatsoever! At first I didn't know what to do, but she was pretty fit so I just rode it out... Fubbed and proud!"

Fubbing by Gibralteaser November 4, 2012

flubbing

The act of having sex with a crease, fold or other indentation in the flabby flesh of an obese person.

"flubbing - to find a fold and fuck it"

Probably from 'flubber' - flab + blubber

"Oh God! He's off flubbing with that buttertroll from before isn't he?"

"He suffocated while attempting to flub her back-tits"

flubbing by UrbanVoodoo September 24, 2009

Frubing 

When you take your condom off after use and consume the contents, like it's a frube.

Apparently Will banged some girl last night, then after he was done, he took his condom off, looked the girl in the eye seductively, and started frubing!

Frubing by redcliffe1 December 24, 2009