As nouns the difference between gumball and jumball
is that gumball is chewing gum sold as a ball usually coated with colored hard sugar while jumball is (kind of sugared cake).
gumball
English
Noun
(
en noun)
Chewing gum sold as a ball usually coated with colored hard sugar.
:Remember those clear globe dispensers with gumball s for a penny?
(slang) A silly, laughable person.
:''When he drinks too much he's a gumball.