Farmers Slang & Its Analogues. 18901909, rev. 2022.
Pig-yoke
subs. phr. (nautical).A quadrant.
1
1836. MARRYAT, Mr. Midshipman Easy, xiv. 81. Mesty agreed with Jack that this was the ne plus ultra of navigation; and old Smallsole could not do better with his PIG-YOKE and compasses.