At the 47m 24.519s mark of show #1583, Andrew Walsh made an interesting sound that wasn’t commented on until show #1584. The sound ended up being named both “Marsupial Gurgle” and “Barabajagal“.
As requested by a listener, I have created a clip that puts the Marsupial Gurgle in context of the discussion:
As mentioned, the Marsupial Gurgle sound was not commented on until a listener sent in an e-mail asking what that sound was and described it as a “sweet gurgle of an infant marsupial”
I have uploaded the first part of the e-mail segment from that show with the listener e-mail, and with Luke and Andrew discussing about it:
And yes, it was Luke that officially christened the name of the sound, “Marsupial Gurgle”:
Luke spent some of his spare time creating a few Marsupial Gurgle remixes.
Andrew then attempted to recreate the Marsupial Gurgle sound on show #1584:
The attempted recreation sounds somewhat close to one of the sounds Strong Bad makes in “The System is down”: