(informal) Champagne.

(motor racing) Holding the last qualifying position with qualification still in progress, and thus liable to lose that position.

(US, slang) Large, rounded buttocks. / (US, slang) A fat person.

(slang) A stupid person. / (slang) A submariner; bubble-head. / (slang) A navy hard hat or salvage diver (inspired by the shape of the old spun-copper diving helmet).

(pathology) An inflamed swelling of a lymph node, especially in the armpit or groin, due to an infection such as bubonic plague, gonorrhea, tuberculosis, or syphilis.

(Britain, New Zealand) Cabbage and mashed potatoes etc. fried together. / (Cockney rhyming slang) A Greek.

Alternative form of bubblegum

(usually uncountable) A sweet chewing gum formulated to be stretchy so the chewer can blow bubbles with it.

tasting like bubblegum / by extension, sweet, perky, or youthful

(idiomatic) To disillusion; to disabuse someone of a false notion or rationalization that has grown comfortable.