This text comes from The Canadian Soldiers' Song Book, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Dear Fritz, who hands the blighties out so free,
Please save a nice sweet cushy one for me,
One that will strike me just below the knee,
Six months in blighty, oh how sweet t'would be.
Chorus;—
Give me that shell with pellets nice and round,
Scatter them all but one upon the ground,
Give me that one but let it come a mile
And I will give you the sunshine of my smile.