1.
Cavernous pussy. Good for spelunking.
See: alcove, bat cave, bear trap, bearded clam, bearded taco, beaver, bermuda triangle, box, bucket seat, cake, chuff box, cockpit, cooch, coochie, coochie-pop, coose, cooter, cooze, crack, cum depository, cum dumpster, cuntcake, cunt, cunny, donut, dripping delta, felted mound, fillet-o-fish, finger hut, fish, fish taco, front bum, fly catcher, fuckhole, garage, gash, gates of Heaven, golden doorway, Grand Canyon, growler, hatchet wound, heaven's door, hole, honey cave, honey pot, hot box, jaws of Hell, lobster pot, loins, loose meat sandwich, lotus, love box, love canal, lower lips, meat wallet, muff, nooch, nook, nookie, peach, pearly panty gates, pocket, poon, poontang, purse, pussy, quiff, quim, rat trap, scratch, sheath, slash, slit, snapper, snatch, space, split, stench trench, tampon socket, temple, thingy, tool shed, tuna, tunnel, twat, undercut, vagina, vertical smile, wishing well, whisker box, womb, x, yoni
I peeked my head into the crawl space.