When someone gets a boner from listening to or thinking about the Jonas brothers.
I was listening to my new jonas brothers cd and I got a huge joner!
by Megzok February 19, 2009
A. An erection that has a justifiable cause and is not of a random nature. B. The opposite of a roner.
When the stripper started giving him a lapdance, Brian got a joner.
by DonE BDS March 01, 2010
The erection (boner) of a person wearing jean shorts (jorts).
Uh oh, Kev's got a raging joner again.
by Dizzy Gilespi October 02, 2008
When your dick reaches full excitement, but your boner only goes up to 1 inch long.
Jonah Choi had a joner today in the middle of presenting a report.
by Cockisgoody June 07, 2011
Though the true meaning of the name is,"the name given to the boner of a jonas brother", according to urban dictionary, it also refers to a sexual predator with a shorter-than-normal penis. Typically a "Joner" is a genetic disorder and carries on throughout most males in a family line. This disorder has been seen and accounted for in other cases in the area.
He took out his joner and started nibbling on my nipples, later cooling them with ice.
by f0bbz17 August 18, 2009
A jerk; dork, dweeb, putz, etc.
Generally used as a derogatory term for a bad driver.

(this definition predates any Jonas Brothers-related definitions by many years)
That joner was driving on the freeway doing 45 in the fast lane!
by Jonerrific September 22, 2009
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