a person who just ups and completely disappears suddenly from a relationship without warning, much like the character of the same name from the film "Usual Suspects" did after suppousedly committing a crime.
"we spent the whole weekend together and then he pulled a Kaiser Soze. haven't heard from him in 2 weeks. fucker"
by dirtystan August 8, 2006
by Gumba Gumba February 22, 2004
A person that visits you in your prison cell late at night.. mysterious, dark and frightening, gives you an anal intrusion and disappears before daybreak.
by Sir_Cruz October 4, 2006