To jump on a couch means to openly express your love or infatuation with someone. Couch jumpers are usually rich actors who appear on a nationally televised show to show off their new girlfriend.
Tommy was so enthralled by his new found love Kathy that he started jumping on couches.
Based on Tom Cruise's display of affection for Katie Holmes on Oprah. To jump the couch is to say a person has lost the ability to deal with emotions in a reasonable way. Communicating some form of insanity to those around.
"Tom Cruise really 'jumped the couch' on the Oprah show yesterday. Someone confiscate his crack-pipe!"
By Arleyne
Jumping The Couch
The defining moment when you know someone has finally lost his or her marbles. Inspired by Tom Cruise's behavior on Oprah when he jumped up and down maniacally on her couch, while professing his undying love for actress Katie Holmes. Reportedly much easier to accomplish than going off a "deep end".