Leave Her, Johnny is a traditional sea shanty.

The "her" being left is not a woman, but the ship. This shanty was traditionally sung when the ship was at port after it had docked in the final spell at the pumps. Stan Hugill traces its origins to a shanty, Across the Rockies, which was sung on Western Ocean packets, possibly as early as the time of the Potato Famine.

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I thought I heard the Old Man say
"Leave her, Johnny, leave her"
Tomorrow ye will get your pay
And it's time for us to leave her

Leave her, Johnny, leave her
Oh, leave her, Johnny, leave her
For the voyage is long and the winds don't blow
And it's time for us to leave her

Oh, the wind was foul and the sea ran high
Leave her, Johnny, leave her
She shipped it green and none went by
And it's time for us to leave her

Leave her, Johnny, leave her
Oh, leave her, Johnny, leave her
For the voyage is long and the winds don't blow
And it's time for us to leave her

I hate to sail on this rotten tub
Leave her, Johnny, leave her
No grog allowed and rotten grub
And it's time for us to leave her

Leave her, Johnny, leave her
Oh, leave her, Johnny, leave her
For the voyage is long and the winds don't blow
And it's time for us to leave her

We swear by rote for want of more
Leave her, Johnny, leave her
But now we're through so we'll go on shore
And it's time for us to leave her

Leave her, Johnny, leave her
Oh, leave her, Johnny, leave her
For the voyage is long and the winds don't blow
And it's time for us to leave her