2. (Polit. Cant)

Defn: A politician who works in secret; — in this sense, usually written as one word. [U.S.]

PIPELAYING; PIPE LAYING
Pipe"lay`ing, n., or Pipe" lay`ing.

1. The laying of conducting pipes underground, as for water, gas, etc.

2. (Polit. Cant)

Defn: The act or method of making combinations for personal advantage secretly or slyly; — in this sense, usually written as one word. [U.S.]

PIPE LINE
Pipe line.

Defn: A line of pipe with pumping machinery and apparatus for conveying liquids, esp. petroleum, between distant points.

PIPE-LINE
Pipe"-line`, v. t.

Defn: To convey by a pipe line; to furnish with a pipe line or pipe lines.