This occurs when a person has had one too many huge cocks slammed into their ass. The starfish has now lost all elasticity & is streched out beyond belief. Whenever this individual laughs, coughs, or merely breathes the rectum rolls out like that of a frog's tongue or a new years eve noise maker.
Susie laughed so hard on my 40th birthday she startled me with her bright pink party favour. Pfffffffffft!