Here are the full words, as best I can remember them:

Oh, I am Sir Clifford's gamekeeper, from up in Nottinghamshire:
He was very good to me, but his wife was rather queer!
I met her in the forest - she asked me for some game –
And if I misunderstood her, it was great fun all the same.
With me deerstalker cap, and me fol-de-riddle-dee,
And I was the Lover of Lady Chatterly.

She said the aristocracy should mingle with the folk –
She mingled all right with me that night, till it got beyond a joke.
Her husband was no use, she said - he blamed it on the war.
I said, poor chap, he's gone on strike – he knows what he's in for!
With me … etc

Just after we had finished what has since been called a 'bout',
She lifted her head from off the bed, and she began to shout:
"There's that dirty D H Lawrence, a-peeping round the door!"
He was off afore I could grab me gun, and he wrote down all he saw.
With me …

The publishers wouldn't touch it 'cause they said 'twas pornographic,
But smugglers brought it from abroad, and did a roaring traffic.
Then Penguin took the case to court, and had a bit of luck
When they proved the artistic merit of some four-letter words like …
With me …

Well, I still remember her with regret, although her sins were scarlet –
She befriended an honest working man, and now she's called a harlot.
But I don't work up there no more, 'cause Sir Clifford gave me the sack,
As soon as he read what we did in bed, in that Penguin paperback!
With me …

I did once meet the man who wrote this song, but can't remember his name now. (Sorry, if you're out there, mate.)I believe he was one of the regulars at the Nottingham folk club back in the early '60s, when the notorious 'Chatterley trial' took place, and dashed off the song in a burst of local patriotism.

Wassail!