Meaning of おおぶね in Japanese

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Definition of おおぶね

おおぶね(oobune) · おおふね(oofune) · たいせん(taisen) 【大船】

おおぶねにのる(oobuneninoru) 【大船に乗る】

(exp, v5r) to gain a reliable foundation and be in a safe condition; to board a large ship
ボクに任せたんだ。君たちは大船に乗ったつもりでいるといい。
I'm taking care of it. You can relax, you can rely on me.