The act of sqeezing the butt cheeks together having the fart make a squeek noise. (similar to a quif) But then u hold them like that untill you start to have anal seepage forming a work shaped exterior.
As Lady Atri was demonstrating a dead-lift at her gym, the sound and odour rang out for all to bare witness to. The rest of the gym went silent except for the snorts and chuckles of Juicy on a time out in the corner. She as everyone knows , is a world renown Fartgiggler.