Definition of "thimbleful" [thim•ble•ful]

• A very small quantity. (noun)
• The amount that a thimble can hold. (noun)

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.

• "She was suffering from rheumatism, and required treatment with a 'thimbleful' of vodka which loosened her tongue."
• "He called in at the bar to obtain his favourite "thimbleful" of cognac, and there he found a very agreeable landlady, with whom he got into conversation respecting the accident."
• "Taking my "thimbleful" of chocolate, I retreated to a corner where I could sit and sip and take observations unobserved."