She was knee-high to a grasshopper, and I was shoulder-high.
The lawn is like velvet and everywhere the grass is knee-high.
Why, I ain't bin inside a schoolhouse since I was knee-high to a grasshopper.
He hesitated a moment, then pushed between the knee-high stalks.
Since he was knee-high he's always had an aidge on most folks, 'count of his size an' weight.
Ever since ...