what does "spit" mean in the following context? The following is from Charlotte's Web by E.B. White. I don't know how to paraphrase "the little ball of spit" here. To any one who helps me, thank you in advance. ----------------------------------------------------------- In early summer there are plenty of things for a child to eat and drink and suck and chew. Dandelion stems are full of milk, clover heads are loaded with nectar, the Frigidaire is full of ice-cold drinks. Everywhere you look is life; even the little ball of spit on the weed stalk, if you poke it apart, has a green worm inside it. And on the under side of the leaf of the potato vine are the bright orange eggs of the potato bug.