>>> what's in a name? we've gotten used to robert gibbs. ohio republican bob gibbs is on his way. we're meeting incoming members of congress all week. we'll introduce you to the other robert gibbs. >>> first, lame duck. this is an elected official or group holding office between the induction and the swearing in of a successor. lame duck is slang that goes back to the 18th century referring to a broker who couldn't pay his debts. he had to waddle out of the alley like a lame duck. this happened in 18th century britain. as someone said, it was probably a couple of guiness stouts. if you've some washington speak you'd like to clarify, send us an e-mail. we'll be right back. when i use expedia, my friends at work think there's more than one "me." ...because on our trips, i always get there faster. see, expedia lets me mix and match airlines.