Champ At The Bit Meaning

Example : 2001: Byron Spice, Science Editor, Pittsburgh Post-Gazette, PG News read at [[1]] on 14 May 2006  Pittsburgh supercomputer is complete, and scientists are champing at the bit to use it.2006: Australian Broadcasting Corporation, webpage for Ideas with wings, a radio series supporting innovation read at http://abc.net.au/science/wings/ on 14 May 2006  Everyone is champing at the bit to be labelled innovative.2006: Al Rosenquist of Pastika’s Sport Shop, speaking to Terrell Boettcher of Sawyer County Record, Hayward, Wisconsin, Anglers champing at the bit read at [2] on 14 May 2006  We had quite a few people in last weekend. They’re champing at the bit, ready to go.