noun
1. A large, cavernous asshole similar to the caldera in a volcano; a hot, steamy, wide vagina
verb
2.dropping a large and expensive item in public, due to physical weakness, causing extreme humiliation
1. Diarrhea erupted out of Erick's calderon like hot magma out of a volcano.
2. He was upset with himself after calderoning his second computer monitor in one year
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