Get it? It’s a pun. A pun and a reference. Two references. To the show Seinfeld, and the show/series of children’s novels, Goosebumps, by R.L. Stein. You remember Goosebumps, don’t you?
Okay, I tried to do that subtly, but seriously, click that link, I spent entirely too much time on it and the least you could do is check it out.