Top Definition
An occourance when a man is so revolted that even his penis cowers in fear, hiding from its object of horror.
That girl is so ugly, I get a renob just thinking about her.
بواسطة WallaWallaOnion إبريل/نَيْسان 22, 2003
When the penis goes from erect to flacid in a very sudden fasion. Usually has a slight stinging feeling in the head of the penis during the shrinkage(similar to the feeling of recieving blue balls). Can occur at the sight, smell, touch or sound of something unatrractive.
Dude, she had so much hair in her butt hole that i got the worst Renob of my life.
بواسطة MidShaftGash ديسمبر/كانون الأَوّل 8, 2005
a)It's boner spelled backwards. Refers to a dumbass. Usually used after someone does or says something stupid.

b)an erect penis
Dan you renob!! There is no such thing as a off-suite flush.

Matt had a renob after looking at caitlen.
بواسطة t-gay أغسطس/آب 24, 2006
Something you get when you see a rather unattractive female. An inverted boner, if you would. Or perhaps a negative hard on.
"Wow, did you see that ugly ass bitch with no tits? She totally gave me a renob.
بواسطة TheClyde أغسطس/آب 12, 2005
(boner spelled backwards) Anything related to a boner or erection.
Look at that douche Evan, he is such a renob.
بواسطة bonerjames2000 أكتوبر/تشرين الأوّل 21, 2010
It's boner spelt backwards. A limp penis. A very ugly person, causing a man's penis go limp. A stupid person.
Robbie has a renob.
You're such a renob.
Oh my gosh don't look at the girl she will give you a renob!!!
بواسطة Marissa Humble إبريل/نَيْسان 18, 2006
The exact opposite of a boner; when something is so repulsive that a man's penis shrivels up and goes backwards, until it is through the outer end of his rectum.
The trailer for Shark Night 3D was so awful I got a renob that poked a hole in my chair.
بواسطة TheStormPow أكتوبر/تشرين الأوّل 24, 2011
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