What's in your eye?

Darlene was pointing out to me today that I had that white stuff that collects in the corner of your eye......... collecting in the corner of my eye. Of course, we refer to this 'stuff' as eye hockey. I don't remember where we got that term from - I just know we overheard it somewhere and decided to adopt it because it was funny-cool.

What the hell does the rest of the world call it? What do you call it?