Gorgle

(shortened definition)

1. (verb) to gargle a liquid with a low/deep tone in their voice, or to produce a low/deep-pitched gargling noise

2. (noun) the sound produced by low/deep-voiced gargling

Present use: gorgles, gorgling
Past use: gorgled

*A 17-year-old girl is practices her gorgling technique in her bathroom.*

Girl: *slurps water* *swish swish* *gorgles water* *gorgling intensifies* *spit* Ahh, much better! :)