Meanings
plural rattlecaps
- obsoleteslangAn unsteady, volatile person.
He regarded Simon with indulgent fondness, having known him from the cradle, but he knew that Simon was inclined to be a rattlecap; […]
1970, Georgette Heyer, Charity Girl1 more example
I should write oftener but that my sister Sarah has become such a rattlecap, that she leaves me not a particle of news. Upon my word, she is the greatest talker extant. I am a perfect silence compared with her.
1897, Abby Hopper Gibbons, Sarah Hopper Emerson, Life of Abby Hopper Gibbons, page 81
Cite this entry
rattlecap. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/rattlecap
“rattlecap.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rattlecap. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “rattlecap,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/rattlecap.
Source: rattlecap on Wiktionary, CC BY-SA 4.0.