someone who laughs and jokes with you then stabs you in the back to get you in trouble
I used be friends with that guy until he pulled a calderon. Next thing you know i lost my job
1. A large, cavernous asshole similar to the caldera in a volcano; a hot, steamy, wide vagina
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