1 definition by Jack Salot
Contraction of the words Instant and Boner.
When you see something that makes your penis go from zero to sixty in only a couple seconds; extreme, instant arousal.
When you see something that makes your penis go from zero to sixty in only a couple seconds; extreme, instant arousal.
John: "Did you see Jennifer Lawrence dancing in Silver Linings Playbook...?"
Sam: "No, was it hot?"
John: "Something I like to call, Instaboner"
Sam: "No, was it hot?"
John: "Something I like to call, Instaboner"
by Jack Salot December 30, 2014