Green’s Dictionary of Slang

in oaths, a euph. for God’s, e.g. Cuts plutter(a)nails! Cuts bobs!

c.1658		‘The Power of the Sword’ in Ebsworth Merry Drollery Compleat (1875) 126: The sword prevails so highly in Wales too, / Shinkin ap Powel cries, and swears Cuts-plutter-nails.
1672		J. Phillips Maronides (1678) V 71: Cuts-foot! shall daring Dares quell us.
1689		‘A Cruel & Bloody declaration’ in A. Carpenter Verse in Eng in 18C Ireland (1998) 40: Patre, partus parvide, (Cut pluttra Nailes, like a Pillow).
1700		‘John and Joan’ in Playford Pills to Purge Melancholy II 198: Cuts foot, quoth she, ’tis a dainty Steel.
1705–07		N. Ward Hudibras Redivivus II:2 10: Cuts bobs, says Frisk, my Brains grow addl’d.
1719		in D’Urfey Pills to Purge Melancholy V 64: Cuts-plutter-a-nails, quoth Taffy then, / A Welchman is a shentleman.