There are 3, 3, 3, kinds of erections. Some are sexual. Some occur during periods of nervous tensions.
There's a mysterious third kind. That no one really understands. It happens when your shlong decides to take matters into its own hands. No reason boner. It baffles scientists. No reason boner.
Dan: This morning I was having breakfast at the midtown diner. The bagel was delicious and the coleslaw couldn't be finer. Got a weird look from the waitress, when I asked her for the check. I looked down and realized I was 100% erect! No reason boner! I like coleslaw but not that much. No reason boner.
by cheresterstalone March 24, 2017
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the sudden, unexpected boner you get for no apparent reason. can be brought on due to no stimulation of the penis, just no reason.can be abbreviated as NRB.
Fred:so, I was sitting in the class the other day and I asked the teacher if I could go to the bathroom and I got up and had a no reason boner!
Rick: That shit's funny dawg, did the teacher see you?
Fred:Yah!, along with the whole classroom too!, I was embarassed!
by Ya Boy Trax July 4, 2010
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Definition 1: An erection for no apparent reason. It can happen any time and anywhere. Super embarrasing.
Definition 2: A song made by Ninja Sex Party in the album Nsfw.
1: Danny Sex Bang: I like coleslaw, but not that much! No reason boner.

2: Person 1: No Reason Boner is the story of my life.
by Golden Inferno August 1, 2017
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