DDT

Dubious Debt Transfer - When person A owes person B money, but person B owes person C money, person A just pays person C directly. Used to settle debts, typically during a poker game when players owe each other money. As the number of debtors increases in the equation, the dubiety increases exponentially, ie. d^d.

Brian: Bro, you owe me $20 from the poker game last night
Vinny: Haulgh, I paid poker fish dat one - DDT!
Brian: d'oh, dubious