Those from America should recall the meme that was the Chuck Norris facts, and this is the mathified version:
Gauß facts!.
Some of my favorites:
The Clay Mathematics institute owes Gauß $7,000,000.
Gödel heard there were some problems Gauß couldn't prove, and that was enough for him.
Gauß knows an explicit bijection between

and
To win a bet, Gauß once threw darts uniformly at the real number line and hit only rationals.
Erdös believed God had a book of all perfect proofs of mathematical theorems, God believes Gauß has such a book.
Gauß once played himself in a zero-sum game. . . and won $50.
Gauß has an Erdös number of -1.
Gauß proved there were infinitely many proofs by counting them. . . backwards, from the last.
Gauß can walk through Königsburg and cross all of its bridges once, and only once.