What is "to draw a long bow"

Bow \Bow\ (b[=o]), n. [OE. bowe, boge, AS. boga, fr. AS. b[=u]gan to bend; akin to D. boog, G. bogen, Icel. bogi. See Bow, v. t.]

1. Anything bent, or in the form of a curve, as the rainbow.

   I do set my bow in the cloud.
   --Gen. ix. 13.

2. A weapon made of a strip of wood, or other elastic material, with a cord connecting the two ends, by means of which an arrow is propelled.

3. An ornamental knot, with projecting loops, formed by doubling a ribbon or string.

4. The U-shaped piece which embraces the neck of an ox and fastens it to the yoke.

5. (Mus.) An appliance consisting of an elastic rod, with a number of horse hairs stretched from end to end of it, used in playing on a stringed instrument.

6. An arcograph.

7. (Mech. & Manuf.) Any instrument consisting of an elastic rod, with ends connected by a string, employed for giving reciprocating motion to a drill, or for preparing and arranging the hair, fur, etc., used by hatters.

8. (Naut.) A rude sort of quadrant formerly used for taking the sun's altitude at sea.

9. (Saddlery) sing. or pl. Two pieces of wood which form the arched forward part of a saddletree.

   Bow bearer (O. Eng. Law), an under officer of the forest who looked after trespassers.

   Bow drill, a drill worked by a bow and string.

   Bow instrument (Mus.), any stringed instrument from which the tones are produced by the bow.

   Bow window (Arch.) See Bay window.

   To draw a long bow, to lie; to exaggerate. [Colloq.]