A Jacuzzi Cubble* can be produced when two or more gay males are in a jacuzzi, and they ejaculate in the water. Any bubbles that rise to the surface thereafter are referred to as Cubbles, seeing as they are now tainted with semen.
*The word Cubble mixes the word CUM and the word BUBBLE
Timmy and Eric were having a nice time fucking each others ass in the jacuzzi, when suddenly Eric came in Timmy's asshole. The semen escaped and floated to the surface making many Jacuzzi Cubbles.