A deadpan, snarky response to an unbelievable series of events that is related to you by a friend or co-worker. Taken from the classic Lee/Kirby issue of THE AVENGERS where Captain America is found in the Arctic, having been frozen in a block of ice since the end of World War II.

After he is thawed out, Cap relates the following tale: "By some fantastic stroke of fate, I must have been frozen in an ice flow, and then found by some eskimos who thought I was a supernatural object. Then, all those years, being in a state of frozen suspended animation must've prevented me from aging."

The rational response to all that malarky? "We believe you, Captain America."

When you eat dirt for the first time and leave your family to build a shack in the woods