look up any word, like spook:
 
1.
a person that leaves his bf/gf/so/partner for a new one, and then leaves that person for a new one. and leaves that person for a new one, etc.
Allen has ship jumper syndrome, he left Jessica for Jane and left Jane for Valerie. He's like a rat jumping off a ship he thinks is sinking.
by xanaxnation October 13, 2010