(1) A Jonas Brother
(2) A very homosexual person that likes dick in their ass.
(3) The state of mind of Joe, Kevin, or Nick when they show how gay they really are.
(1) "Omg it's a Joner Boner"
(2) "Wow you're so gay you're a Joner Boner"
(3) "Kevin showing his Joner Boner again"