Intriguing substance made of chemicals and flavors which, when chewed thoroughly, becomes very elastic and sticky. By means of a carefully placed tongue and gentle exhalation, a wad of bubble gum can be transformed into a glistening, distended balloon. Overfilling this rubbery construct causes it to burst with a satisfying pop!, frequently covering the blower with the adhesive remnants, sometimes permanently.

By comparison, chewing gum has less elasticity when masticated, but tends to stand up to more molar grinding.