(n). A person who doesn't like his or her surroundings or situation, and wants to leave a certain area, or stop doing a certain thing, or wants to bail out and discontinue associating with a certain person or persons because it no longer suits their agenda.
My girlfriend of 3 years didn't like my new job, so she decided to bail out on our relationship and be a " Ship-jumper".
The sexual act of performing jumping jacks naked while your partner gives you head. And if you want to really get into it you can add some maple syrup and the 1998 Denver broncos!
Man last night was awesome me and my girl were doing some canadian jumpingjacks with the 1998 Denver broncos and maple syrup it was fantastic.