A very
small fact. Usually used when one wishes to express what a small fact his fellow peer has just spoken upon.
The word can also be used as an insult, in the
simple context of expressing that the speaker of the fact is actually saying such a small fact that it is a factoid, therefore being painfully obvious. Sort of another way of saying no shit
sherlock.
Friend: "Yo,
Justin Beiber is
bad!"
Me: "Straight Factoids!"
Or
Friend: "Did you know, Spongebob is a
sponge?"
Me: "Bruh, that's a factoid, wtf"