What is the meaning of Disposer?

One who disposes.

to organize, to arrange, to distribute in a certain fashion

to prepare (something) for an occasion, to incline (someone) towards

to prepare oneself for, to be about to

to have at one's disposal or available; to have access to

to use someone to do one's biddings

to leave, to go

to make use of one's right of dismembering, selling or otherwise dispose of a certain owned item

to prepare psychologically

to take measures, to decree

Source: wiktionary.org