from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To laugh quietly or to oneself.
- intransitive v. To cluck or chuck, as a hen.
- n. A quiet laugh of mild amusement or satisfaction.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A quiet laugh.
- v. To laugh quietly or inwardly.
- v. Sounds made by chicken.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To call, as a hen her chickens; to cluck.
- transitive v. To fondle; to cocker.
- n. A short, suppressed laugh; the expression of satisfaction, exultation, or derision.
- intransitive v. To laugh in a suppressed or broken manner, as expressing inward satisfaction, exultation, or derision.
from The Century Dictionary and Cyclopedia
- To make a clucking sound, as a hen.
- To laugh in a suppressed, covert, or sly manner; express inward satisfaction, derision, or exultation by subdued laughter.
- To call by chucking or clucking, as a hen her chicks.
- as a chuckle.
- n. The call of a hen to her young; a cluck.
- n. A sly suppressed laugh, expressive of satisfaction, exultation, or the like; hence, any similar sound.
- To chuck under the chin; fondle.
- To rock upon its center while rotating, as the runner of a grinding-mill.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. laugh quietly or with restraint
- n. a soft partly suppressed laugh
Probably frequentative of chuck3.(American Heritage® Dictionary of the English Language, Fourth Edition)