Arrangements are made when you don't have the cash flow to pay your bill(s) on time and are at risk of being shut off at some point in the near future. Arrangments can be set up as a one time payment or as a series of payments over a set period of time.
e.g. My cable was going to get shut off but I called the cable company and made arrangements to pay my bill next week.
A preemptive plan in which a closet gay purposely marries a woman in order to create a veil of heterosexuality. In well-planned arrangements, the wife of the closet gay is well aware of her husband's sexual needs and satisfies her own accordingly as the husband does the same, all in secret. Arrangements are prompted by familial, religious, or cultural pressures that look down on homosexuality. See wonky
Note: marriages in which men come out of the closet and separate from their wives are NOT arrangements.
Jay: Bro, I think my parents are going to find out I'm gay and disown me.
Rob: No, dude! You can be happy in the closet and keep your parents in the dark. Just get an arrangement with that skank Jessica!