To have had an extremely good day.
Carlos: I went surfing at Linda Mar, hit a few balls at the driving range, met the in-laws for dinner, caught up on my bills, and found some good new tracks online. I cubed it.
Amy: Damn. That is a great day.
Carlos: Yeah, I'd have to say today was a good day.
v. - "to cube" to discard of broken things
adj. - denoting uselessness
"I heard you you started seeing someone new." "Nah, we cubed right away."