Gurgerlfert

A gurgerlfert is when you fart makes a hollow bubbling sound of of your backside. This is not a shard because you have no reminisce on your underwear.

For example: See Dumb and Dumber when Llyod gives Harry a laxative and he sits on the bowl to relieve himself. It's that sound minus the poo.

Harry let out a HUGE gurgerlfert when he walked away from the table.