Nervous or agitated, often in a way that is slightly excited or anxious. She felt twittery before her big presentation at the conference.
Making light, high-pitched sounds like the chirping of small birds; full of twittering. The garden grew louder as the morning became warm and twittery birds filled the air.
Relating to, characteristic of, or resembling the social-media platform Twitter or its style of brief online posts. Her presentation used a snappy, twittery format that kept the audience engaged.