Jack Button 

The act of ejaculating directly into the navel thus filling the belly button with jape. Only works with an "inny" belly button.

While boinking Bertha, I noticed she had an "inny" belly button with a nice reservoir. So, I pulled out and gave her a Jack Button.

Jack Button by MiltonHighlander August 20, 2006

Jack Ass Button 

A certain action that sets someone into a pissed off state. Everyone's button is different, it really depends on ones annoyances. Commonly performed by bitch ass niggas.

Vic: Don't you hate when someone sends you a text from somebody else's phone?
Joey: Yeah, that shit pushes my Jack Ass Button.

Jack Ass Button by GorillaVic21 March 23, 2009

Jack_Burton 

When somebody is in so much denial that they don't know when they have or have not done something. This can occur for a number of reasons, such as somebody telling a lie so much that they have convinced themselves its true.

Bernard is such a Jack_Burton, he still thinks he has done that homework.

Jack_Burton by Jamnes December 10, 2013