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verb: use or consume something rather than discard it.

Adapted from the Tagalog, where it's meaning is more like "too bad" as in missing a change or opportunity.
"Here, you want to sayang this? It was buy one get one free and I only need one."

"Hey man, I drank too much tonight, do you want to sayang the rest of my beer?"
by CivilJoe August 26, 2013