Molten excrement expelled from bowels as a result of coffee induced gastrointestinal pressure. The viscosity can vary greatly and events are typically accompanied by gaseous explosions.

The substrate upon which the lava has flowed may show signs of scouring, it may be broken or disturbed by the boiling of trapped water.

Pillow lava is the lava structure typically formed when lava is vented in a submarine or subglacial environment.

Java lava is preferred to the improper usage of coffee enema.
That cup of coffee gave me a serious case of java lava!
by maconlit October 24, 2010
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