“Findom Dictionary”
Findom/Fin domme: Shorter version of financial dominant, financial domme, or financial dominatrix. A findom is a woman (typical) who specializes in financial domination.
Financial Domination: Is a type of domination that involves the submissive (usually a male) paying or tributing the mistress. This can be used in combination with other interest such as sissification, cuckoldery, chastity, forced bi, etc. However, it does not need to be combined with anything in order for the submissive to feel satisfied, excited, or aroused. Just the idea of handing over money to a dominant female is enough to provide those feelings.
Paypig/Money Slave: Is a submissive, usually a male, who tributes to his mistress and/or buy gifts for her. However, not all submissives who gives money to their mistress is a paypig. A paypig is usually some one who’s fetish focuses on this idea. This is the thing that “gets them going”, take away that aspect of the relationship and they might not be able to get excited or aroused.
Tribute: Is usually money given to a domme by her submissive. Tribute can mean a lot of different things to a lot of different people, but for me personally, it means money given on a reoccurring basis for no particular reason. Though sometimes a tribute is given for certain information, such as an IM screen name, it’s usually for no other reason than you’re serving your mistress by tributing her. Some mistresses also accept tributes in the form of gifts.
Submissive vs. Slave: In my opinion, the basic difference between the two is the use of the word “no”. While the submissive has the choice to say no during the D/s relationship, the slave gives up complete control at the beginning of the relationship. Once he gives consent at the beginning of the M/s relationship, he's obedient throughout the relationship and doesn’t usually question whether he will follow orders or not. This is a generalized comparison, there’smore to the two than I have listed.
BDSM: Breaks up into BD (bondage and discipline), DS (Dominance and submission), and SM (Sadism and masochism)
D/s: Dominant and submissive
M/s: Master and Slave
Credit: http://plussizedominatrix.tumblr.com/post/26834301083/findom-dictionary