To masturbate with one's severed limb. The removal of said limb can occur by any means; be it natural disaster, self-mutilation, or mutilation by others. Also can be referred to as an extreme "Stranger".
Crub: I heard after James Franco severed his arm in 127 hours he decided to masturbate with it.
Demecs: Yeah, he chose disembation over masturbation.
Crub: Good choice!
In the financial world this is used to describe the termination of an ongoing relationsip with a customer. This replaces “exiting the relationship,” as it simply sounds more pleasant, or as George Carlin might have playfully contrasted the terms, you ‘disembark’ a cruise ship but ‘exit’ a fire drill.