When one or more buttons are visibly in mid flight for any reason.

The reason is usually due to being [[popped button|popped off]] an article of clothing from thread breakage.
Buttons can be drawn with added [[motion lines]] and/or [[motion blur]] for dramatic effect.

h4. See also
* [[popped button]]
* [[bursting breasts]]
* [[undersized clothes]]
* [[wardrobe malfunction]]