1. The act of having sex with someone that is fat.

2. Two fat people having sex.
1.
Person1: Yeah, we decided we're going to have sex.
Person2: You mean you and that fat chick?
Person1: ....Yeah
Person2: Oh..Well..Urm..Have fun flubber fucking!

2.
Person1: Oh god they're doing it again. I can hear their fat slapping from in here.
Person2: Oh no! Flubber Fucking!
by JusLilOleMehXD February 24, 2011
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When mixing semen and female squirt juice and letting it sit for 3 hours it turns into a goo. A flubber Grubber is someone who enjoys eating that
Jane is a Flubber Grubber because she likes to get freaky.
by PissPants April 12, 2015
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This is much like Jizz but it is not quite. It has a jelitan like consistancy and if you blew it toward a wall from the errect penis it may very well bounce back.
Damn man, I flubber jizzed in my bathroom the other night, it bounced off the wall and went threw the window.
by Dude who kows things January 29, 2012
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The phrase one says when he or she is annoyed by another; meaning piss off, go somewhere else.
Seth: Hey Adam, did you hear what happened with Gabby and Nick!?
Adam: Yeah, it was so funny.
Alex: *laughing*
Seth: You don't even know what were talking about Alex, why don't you go flubber some where else.
by TheCreativeConcoction June 21, 2009
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A flubber-cock can be:

1. A fat mans penis, which is surrounded by hanging stomach fat.

2. A softee still used for sex

3. A penis that has cum all over it

4. Robin Williams' gnarled fuck stick
I slapped a bitches face with my flubber-cock
by thatkidwiththeheadphones July 24, 2009
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The act of cumming so much that it forms a slime like texture.
Hey you heard about them new flubber nut Cheerios?
by Demoman9 April 20, 2018
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A girl who is so nasty and trashy that her vagina bounces around more than flubber.
did you see Moooochelle hitting on those guys last night? Shes such a flubber cunt!
by bitchesbegone April 20, 2009
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