Definition of "atwitter" []

• Being in a state of nervous excitement; twittering: a crowd atwitter with expectation. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The fact that it sets the Intelligent Design Creationists all atwitter is part of the fun."
• "The tech world has long been known as a world that favors guys, just this week twitter was all "atwitter" about a women in tech panel that occurred at the TechCrunch Disrupt event in SF."
• "The Internet was all "atwitter" last night with word that a new survey by Public Policy Polling, a Democratic-leaning firm, finds conservative Christine O'Donnell surging into a lead over moderate Mike Castle in tomorrow's GOP primary for Senate in Delaware."