A hilarious but cruel trick to play on a friend while she's eating ice cream.
That's a good look.
Wondering how to chase someone's cup of soft-serve with a little shot of esophageal ruin? The caption on this instructional Vine from Lauren Lavoie reads, simply, "Tapped the brakes." Be sure and use headphones so nothing gets between you and that extremely intimate sound.
That's all it takes to inspire the signature noise of someone who just stopped having a good time (or, someone who just started having a great time).
Checking out the rest of Lauren's feed, it seems like she and (sister?) Joanne Lavoie are big into the guttural noise genre of Vine-making, as per this earlier one:
(by Bob Powers)