cum bubble Share definition Flag When a girl is slobing on your knob and she swallows your cum, then burps, causing her burp to buble up with cum Your bitch sucked my dick and burped up a cum bubble cum bubble by Dave May 14, 2003 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug