There is a gulp sound in Animaniacs. The episode's name is called Roll Over, Beethoven.
You can hear it at 6:13 right here: https://kisscartoon.ac/Cartoon/Animaniacs.37977/Episode-017?id=10880
There's also these belch sounds at 6:24 and this song goes very fast.
Here are the pictures:
Can anyone tell me what those sound effects are?