I.out [美 aʊt, 英 aʊt]副out often appears as the second element of certain verb structures in English (come out, keep out, knock out, etc). For translations, see the relevant verb entry (come, keep, knock, etc).
Following their carefully thought out plan, the villagers lure the patrol boat into the harbor and trap it there, ripping its bottom out on the artificial reef they have built.