truncheon

1.) [Obs.] a short, thick club; cudgel 2.) any staff or baton used as a symbol of authority 3.) [Chiefly Brit.] a policeman's stick or billy 4.) [Obs.] the shaft of a spear 5.) [Obs.] a trunk or stem, esp. one with the branches lopped off

Monkey House, pg. 141 1968HC

I knew this one, just trying to place it in context. Note to self: this rhymes enticingly with "luncheon".