Rhubard 

the verb: to Rhubard

To inconspicuously slink your way out of a group conversation by mumbling ("Rhubarb Rhubarb Rhubarb") in pursuit of attractive people you spot whilst in conversation with the group.
OR
To go awol in pursuit of sex, flirtation etc

Wait where did X go? I think he just rhubarded his way over to that waiter

Rhubard by Mr. A - FDC November 25, 2011

Rhubarb and custard 

A euphemism to describe the oozing from and infected orifice.

Doctor I don't know what it is, but it looks like rhubarb and custard.

Rhubarb and custard by The curious bibliophile July 9, 2018

Rhubarb Mousse 

When you shag a woman who is on her period, you make rhubarb mousse

Oh babes if you shag me tonight it will just make rhubarb mousse

Rhubarb Mousse by Michel Roux jnr. December 17, 2011

eating my rhubarb 

Hitting on a member of the opposite sex that your friend is involved with at any stage of a relationship. Generally early on.

1. Hey dude, you were talking to my girl Karen over there. Are you eating my rhubarb?

2. So you're facebook friends with my girl Karen now eh? Are you eating my rhubarb?

eating my rhubarb by -=Gunner=- November 19, 2010

Never rub another man's rhubarb! 

Yes, its from the first Batman movie in 1989. It means stay the fuck away from my girl. It is part of the code. No friend of mine is allowed to talk to or hang out alone with my girlfriend unless they want the wrath unleashed upon them.

"What the fuck man? You took her out to dinner last night? Never rub another man's rhubarb."

Never rub another man's rhubarb! by I'm Batman July 31, 2005

Stewing Rhubarb 

Smoking dope; comes from the similar smell of boiling rhubarb

John was having a bad day and decided when he got home he was going to be stewing rhubarb.

Stewing Rhubarb by ALD1 April 29, 2008

african rhubarb 

The action of finding an old, well used carrot and grinding it on the inside of your neighbours genitals. You then take this (at this stage called a dopey wand) and place it inside of a blender, and pour it into your lovers mouth during penetration to cause a African rhubarb, the best orgasm in the world.

Carlos "god damn azza did the african rhubarb on me 17 times last night and it was even better than the time that jay-z and micheal buble donkey konged me at work"
Paul "damo you cunt gimmie your fuckin lighter"

african rhubarb by Jake dean fist November 5, 2014