from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To drink (a beverage) heartily: quaffed the ale with gusto.
- intransitive v. To drink a liquid heartily: quaffed from the spring.
- n. A hearty draft of liquid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To drink or imbibe, especially with vigour.
- n. The act of quaffing, a deep draught.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To drink with relish; to drink copiously of; to swallow in large draughts.
- intransitive v. To drink largely or luxuriously.
from The Century Dictionary and Cyclopedia
- To drink; swallow in large draughts; drink of copiously or greedily.
- To drink largely or luxuriously.
- n. The act of quaffing; also, the quantity of liquor drunk at once; a draught.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hearty draft
- v. to swallow hurriedly or greedily or in one draught
Origin unknown.(American Heritage® Dictionary of the English Language, Fourth Edition)
Attested since the mid 16th century, of uncertain origin. Suggestions include connection with Irish Gaelic cauch ("cup") (whence Scots quaich, queff). The noun is derived from the verb, since the later 16th century. (Wiktionary)