1. A noisy bodily emission of air that makes adolescents or small children laugh; usually odorless, but occasionally unbearable.
2. A manifestation of air in one’s pants.
Example 1:
Child: I think Peter just emitted a joy bubble.
Class: laughs, awe, and disgust.
Example 2:
Student: I think John is emitting joy bubbles in his pants again! It smells!
Example 3
Child: mommy, I just made a joy bubble!