It doesn't look as if the lyrics are in the DT, so here goes (for the version that my group sings):

DRINK UP THE CIDER

Drink up the cider jar, pass us round the jug
Drink up the cider jar, my lips are all tied up
Eat up all your smelt, then loosen up your belt
And there's still more cider in the jar

(Chorus)
Drink up the cider, drink up the cider
For tonight, we'll merry be
We'll knock the millstones over
And roll them in the clover
The cider's jarred, and so are we

Drink up the cider jar, things are going far
Drink up the cider jar, we're getting quite a start
My cheeks are getting redder, my sight is getting better
And there's still more cider in the jar

(Chorus)

Drink up the cider jar, get up off the mat
Drink up the cider jar, now aren't I getting fat?
I can't get off my perch, and I'm not going to church
And there's still more cider in the jar

(Chorus)

Drink up the cider jar, get it in your chest
Drink up the cider jar, it's time I had a rest
There's nothing like more cider to make my smile grow wider
And there's still more cider in the jar
^^

Here's a prayer to the gods of HTML that I remembered to close all those damn brackets...

M

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Makem & Clancy recording: https://www.youtube.com/watch?v=npZTq-ezlAA

Wurzels: https://www.youtube.com/watch?v=7onOJ-QgXY0