Volcanus 

The crater of a volcano, from which lava eruptions occur.

1) Several islands in the Aegean were formed by eruptions from the volcanus of Nea Kameni.
2) Don’t drink the local water or your volcanus will spew lava.

Volcanus by KrispyDC September 19, 2022

Anus volcanus 

Diarrhea that burns

Do you want to go to taco bell? queried bill
No thanks it gives me anus volcanus. Replied dave

Anus volcanus by Boobis May 29, 2025