The Collaborative International Dictionary
Gibstaff
Gibstaff \Gib"staff`\, n. [Prov. E. gib a hooked stick + E. staff.]
A staff to guage water, or to push a boat.
A staff formerly used in fighting beasts on the stage. [Obs.]
--Bailey.
Wiktionary
gibstaff
n. 1 (context obsolete English) A staff to gauge water, or to push a boat. 2 (context obsolete historical English) A staff used in (w: stick fighting); a quarterstaff.