Heavy rain hit Utah County for a second consecutive day Tuesday, bringing with it flooded roads, accidents and mudslides.
Verb. 1. gum up-stick together as if with gum; the inside of the pipe has gummed up. clog, clog up, congest, choke off, foul, back up, choke-become or cause to become obstructed; The leaves clog our drains in the Fall; The water pipe is backed up. verb.
Answer: Originally, chewing gum was made from the  latex sap of the sapodilla tree (native to Central America). This sap was called chicle. Other natural gum bases may be used, such as sorva and jelutong. Sometimes beeswax or paraffin wax is used as a gum base. After World War II, chemists learned to make synthetic rubber, which came to replace most natural rubber in chewing gum (e.g., polyethylene and polyvinyl acetate). The last U.S. manufacturer to use chicle is Glee Gum. In addition to the gum base, chewing gum contains sweeteners, flavorings, and softeners. Softeners are ingredients such as glycerin or vegetable oil that are used to blend the other ingredients and help prevent the gum from becoming hard or stiff.