What it means
Facts, said on its own, is full-throated agreement, a way of telling someone that what they just said is completely true. The louder you say it, the more you mean it.
Usage examples
"You said it, weekends are too short. Facts."
"Facts, that movie was way better than the sequel."
"You think summer starts the second it hits 65? Facts."
"Facts, that new spot's overpriced and the chips are carrying the whole place."
Where it comes from
From facts, things that are simply true, condensed into a one-word stamp of wholehearted agreement.
