Spittle

This type of bug will cover itself in its own foamy spittle while it feeds.

The PlayStation controller was covered in spittle.

Tommy left some spittle on the table.

The globule of spittle emerged between his lips.

"Who are you?!" he blurted into the woman's palm, and she shook it off in obvious disgust, wiping spittle onto his D-class uniform.

I'll build a spittle, or mend common ways […]