Green’s Dictionary of Slang

pull down the shutter n.

[rhy. sl.]

butter.

[UK]Partridge DSUE.
[UK]J. Franklyn Dict. Rhy. Sl.
R. Walton Cockney Jack or Fun With Rhyme Sl. [Internet] butter Johnnie Rutter / lay me in the gutter / mutter and stutter / pull down the shutter / roll me in the gutter / slip in the gutter / stammer and stutter.