FinDom is the shorthand for FINANCIAL DOMINATION (or for financial dominant/dominatrix). A power exchange fetish in which a submissive will give money and gifts to a financial dominant.
Tit Torture (Or: TT / titty torture / breast torture / titty discipline / nipple torture) is a BDSM practice of inflicting pain on the boobies or nipples.
I believe it's name stems from it's usage of keeping wearers in a 'humbling' kneeling position.
From handcuffs and blindfolds to golden showers and electric stimulation of the genitals.