O.Henry describes a masked gunman robbing the local J.P. of a new $5 bill, and ordering him to roll it into a "spill"
and stick it into the muzzle of the rifle. I cannot find any definition of spill that fits. I wonder if "spill" was once slang name for a drinking straw.

Something reminded me of the word "spile"
Source: Webster's Revised Unabridged Dictionary (1913)

Spile \Spile\, n. [Cf. LG. spile, dial. G. speil, speiler, D.
spijl. [root]170.]
1. A small plug or wooden pin, used to stop a vent, as in a
cask.
Spile \Spile\, v. t.
To supply with a spile or a spigot; to make a small vent in,
as a cask.

Maybe O.Henry knew a dialectical variation of "spile"
written "spill". Any comments?