Gum is the most disgusting substance known to man.
Kid: Look at that kid wearing the rainbow shoes, what a "gum"!
(teachers pass by)
Teacher: Yes those shoes do look like a niece piece of gum.
/Usage is intensified when in used in conjunction with Dude and Bro. Use facial expressions wisely./
Example 2: Dude, way to stay in school and graduate in 4 years with a pretty rad degree... that was really gum bro.
Example 3: Bro, good thing you dumped that bish. She had attachment issues - she was pretty gum dude.