OOOH I get it now. I genuinely thought you were asking for a general definition

Hahahah.
Yeah, my ISP is "unlimited" but there's a fair use policy attached to it. Somewhat pointless because sometimes the amount til it gets into "unfair" use is less than some of the limited packages they give.
For example:
Package 1: Unlimited (but caps at about 10gb per day for example)
Package 2: Not unlimited. (but it's set at 15gb per day).
Furthermore, LOL I said package.