knifeboard means A board on which knives are cleaned or polished. Lexicurio rates it Sui generis — a strength score of 91 out of 100.
Etymology
From knife + board.
noun
- A board on which knives are cleaned or polished.
- A way of arranging benches back to back, resembling a knifeboard; common on the open upper deck of early double-deck omnibuses and trams.“knifeboard seating”
- An early bus with narrow, restrictive seating; a knifeboard bus.