Its a bubble of cum on the end of the dick after ejaculating

1.Often happens after a female and/or male is finished getting skull fucked.
2.A pocket of air stored inside the penis after vigorous masterbation and/or sex which causes a bubble of cum to permeate out of the tip of the penis

When your dick hole inhales air allowing the man to push out, similar to that of a fart, and whilst ejaculating actually blow bubbles from the penis

When her ass is full of cum and she farts resulting in cum bubbles.

this is used to describe what comes out of a womans stomach after she has swallowed a load of your man chowder and cannot keep it down, so she regurgitates it in the form of a bubble.

making a spit bubble with jizz

After a hot load is shot in an asshole, a pocket of air that is with held in the cum is known as the anal cum bubble.