Top definition
The act of taking a shit, and drilling a cavity into the shit with your penis. Then, you cum in the cavity, and you, or your partner consume it in one bite.
I heard Andres had a lavalanche last night.

Nick got sick from too much lavalanche.
by Varv April 27, 2012
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May 28 Word of the Day
A goth who has been part of the subculture since it originally came about, or a goth over the age of 40.
by Solinium May 30, 2008
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2
A major slide of hot molten rock down a sloped surface.
The clouds of ash and cinders from Mt. St. Helens were dangerous enough, but it was the lavalanche that really spelled disaster for nearby communities.
by QuacksO July 28, 2019
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