Let’s see if I can add context to this…”otter of the ass” became a (very) localized meme at a certain messageboard; around the same time a member unironically posited that old submarines should be re-purposed as spacecraft (cause, you know, deep-sea pressure is so similar to the vacuum of space.) Thus, one of the more talented board-vets combined the two in this delightful-if-oblique illo.
www.wordforge.net/showthread.php?t=93237