Boogers

Wipe your boogers off.

Tom is picking boogers out of his nose.

“Now ef ye alls don’t quit fussin’, I’ll set the boogers arter ye ter-night,” which was a dire and telling threat, for, to the mountain children, “boogers” meant ghosts, witches, hobgoblins, thieves, or any other terrible, mysterious creature of the night.

You've got eye boogers.