ˈbōnə(r) noun
( -s )
Etymology: bone (II) + -er
1. : one that puts bones into garments (as corsets) — called also stayer, steeler
2. : a low-grade beef animal suitable only for boning out (as for the preparation of canned meats or sausage)
3.
[ bone (I) + -er ]
a. : a ridiculous and usually embarrassing or painful mistake or slip often arising from a sudden and fortuitous lapse of understanding, tact, or decorum — often used with pull
b. : a grammatical, logical, or factual blunder in a piece of writing often producing a humorous effect
a few historical boners … such as dinosaurs surviving until medieval times — Coulton Waugh
boners in student themes
Synonyms: see error