A Jiggle Fart is when your butt flesh slaps together post-flatulence, producing a moist, meaty clapping sound
As Seth leapt off the couch to answer the door, his cheeks jiggled with such violent enthusiasm that a jiggle fart erupted—wet, slappy, and followed by a sinister puff of air that made the cat leave the room in silent judgment.
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.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.