look up any word, like cleveland steamer:
 
6.
An erection that does not have a precursor.
During a presenation on the real estate market Scott was surprised to see he had a roner since there was no obvious stimulant that would arouse him.
by DonE BDS February 28, 2010
 
1.
An erection that has popped up for no reason. It has randomly come up. Random+Boner=Roner.
Friend A: Dude, what did you think of that math test?
Friend B: It would have been fine, if I didn't keep getting roners.
by popman December 07, 2010
 
2.
a random boner, when one is unaware of their erection
I got up to go to the chalk board and I realized that I had a roner!
by Z-money Ssadab November 06, 2007
 
3.
When one shits in his or her pants, producing a large lump seen from behind as a rear boner.
Hey Ben, that's a mean roner you're sportin' there! Damn it smells....did you shit in your pants? Next time, call me and I can come cover your class for 15.
by TravellerBeyond January 06, 2010
 
4.
A Roner (row-ner) is a random boner.
I was sitting on the couch walking Sportscenter when all of a sudden I popped a Roner.
by RufusDude July 01, 2010
 
5.
A random and spontaneous boner caused by nothing in particular.
John popped a roner on his way to school today.
by AJG323 January 17, 2012
 
7.
A. Promiscous, middle-class debutante male that roams the bars looking for easy pussy, alerts bitches to his intentions by flashing RUD's. B. A man-whore will no hope of reform.
Damn, last week Roner slayed 5 bitches at sodomy lair.
by Lil Kris February 01, 2005