verb (used with or without object) Obsolete.
Examples from the Web for jambing
Also, the parts of a rope at the place bound by the seizing, or caught by jambing.The Sailor's Word-Book|William Henry Smyth
Now they were driving down and, as Salter had said, jambing at the head of the rapid.The Protector|Harold Bindloss
In this event the opponent endeavours to render the communications undecipherable to one and all by what is known as "jambing."Aeroplanes and Dirigibles of War|Frederick A. Talbot
For real work, I prefer a pistol when it is half worn out, as everything then works smoothly and there is less danger of jambing.Automatic Pistol Shooting|Walter Winans
We all passed a fearful night of suffocation and jambing, fasting and feasted on by millions.
Word Origin for jamb
side-piece of a door, window, etc., early 14c., from Old French jambe "pier, side post of a door," originally "a leg, shank" (12c.), from Late Latin gamba "leg, (horse's) hock" (see gambol).