anxious to run so I'm. . .

CHAMPING at the bit. The next time I hear someone on TV say chomping at the bit I'm going to go nuts. The word is champing. Here from langson.com. . .

Champing at the bit

If someone is eager or anxious to do something, they are said to be champing at the bit, (not chomping at the bit. nor chomping on the bit).

CHAMPING: Repetitious, strong opening and closing action of the mouth which
produces sounds when the teeth hit together. Champing in swine may be a
threat signal, but also is performed by boars during courtship and
mating. Definition from Hurnik et al., 1995.

- The Encyclopedia of Farm Animal Behavior

champ
  v. tr. - To bite or chew upon noisily.
  v. intr. - To work the jaws and teeth vigorously.
  Idiom: -  champ at the bit
    To show impatience at being held back or delayed.

- The American Heritage Dictionary of the English Language, Fourth Edition Copyright © 2000 by Houghton Mifflin Company. All rights reserved.

Note that some dictionaries define chomp as being derived from champ. One especially lazy on-line dictionary simply links chomp to the definition for champ, thereby implying that they're identical. The Merriam-Webster entry for champ at points out that while the verb chomp is a transitive verb, the verb champ can be either transitive or intransitive. In particular, the verb in the expression champing at the bit is intransitive, so it would be ungrammatical to say chomping at the bit (since chomp, being a transitive verb, needs an object); you could say chomping the bit instead, but that really lacks the impact of champing at the bit.

So let's get it right people!

oh, yeah, horses run, I run (sometimes) = running blog