Definitions
1.noun(usually uncountable) A sweet chewing gum formulated to be stretchy so the chewer can blow bubbles with it.
2.noun(sometimes derogatory) A type of pop music marked by sweetness, pep and charm (rather than depth or complexity).
3.nounA light pink colour, like bubblegum.
4.adjectiveTasting like bubblegum
5.adjectiveBy extension, sweet, perky, or youthful