To jack off or masterbate. It origin comes from the vibrant red color the penile shaft takes on after a particularly vigorous rub-out session.
After the high school dance left Danny hot and bothered, he had no choice but to rub the rhubarb.
by Chicago Jeff October 4, 2006
Get the Rub the Rhubarb mug.
Rub the rhubarb is southern suburbs of Melbourne, Australia, means basically "don't annoy me" or "don't piss me off$
With my uncle he always tries to rub the rhubarb
by Wombatmtb April 17, 2022
Get the rub the rhubarb mug.
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."
by I'm Batman July 13, 2005
Get the Never rub another man's rhubarb! mug.
Told to Bruce Wayne by the Joker. The Joker was refering to his relationship with Vicki Vale
"Never rub another man's rhubarb!"- The Joker(Jack Nicholson)
by Bruce Lee lives April 8, 2004
Get the Never rub another man's rhubarb! mug.
Can be used in two cases. One for the girls and one for the guys. When this is said to a girl, it means dont play with other blokes dicks. When said to a guy it means dont touch up my girl (rhubarb being a nice sweet dish when added with sugar, girls being nice and sweet)
Boys: Hey man, thats my girlfriend you're trying to impress. Stop it, never rub another mans rhubarb.

Girls: Hey there bitch what you doing? That guys coming on to you. Remember I'm your boyfriend, never rub another mans rhubarb or else. (fight)
by Si_B June 19, 2005
Get the Never rub another man's rhubarb! mug.