fat-finger

fat-fin·ger
UK/ˈfæt ˈfɪŋɡə/US/ˈfæt ˈfɪŋɡɚ/

verb

To type (something) erroneously on a keyboard, keypad, or touchscreen by accidentally pressing with a finger one or more keys other than the intended one.

Meanings

verbfat-finger (third-person singular simple present fat-fingers, present participle fat-fingering, simple past and past participle fat-fingered)

present singular third person fat-fingers · participle present fat-fingering · participle past fat-fingered · past fat-fingered · alternative fatfinger · alternative fat finger

  1. humorousinformaltransitiveTo type (something) erroneously on a keyboard, keypad, or touchscreen by accidentally pressing with a finger one or more keys other than the intended one.

    Another Sprint employee speculated that someone might have fatfingered the keyboard.

    1995 September 8, “US West software update disconnects online users”, in Star Tribune, Minneapolis, Minn.
    4 more examples

    However the other day I fatfingered a web request and got a Charter Communications not found result page

    2008 August 24, “DNS: Patched but not totally fixed”, in TechRepublic

    “Evidently, someone said they ‘fat-fingered’ a trade, meaning they accidentally put it in for billions instead of millions,” Snyder said.

    2010 May 6, Jennie Runevitch, “Source of Stocks’ Plunge Investigated”, in WTHR, Indianapolis, Ind.

    In general, mobile form designs are "chunkier," using larger input boxes to make it easier to tap in the intended field, even if the user "fat-fingers" it. So make sure to add some extra padding to all your input fields, and also increase the font size a bit so it's not only more legible but also larger on the touchscreen.

    2015, Jon J. Raasch, Graham Murray, Vadim Ogievetsky, Joseph Lowery, “Acquiring Data Interactively”, in JavaScript and jQuery for Data Analysis and Visualization, Indianapolis, Ind.: Wrox Press, John Wiley & Sons, →ISBN, part II (Working with JavaScript for Analysis), page 77

    Slowing down the number of login attempts before an IP address is blocked reduces the attractiveness of your site to an automatic attack script. Note that generally these offer temporary IP address blocking, so that valid users who accidentally fat finger their password have an opportunity to log in after the ban has expired.

    2015, Brad Williams, David Damstra, Hal Stern, “Securing WordPress”, in Professional WordPress: Design and Development, 3rd edition, Indianapolis, Ind.: Wrox Press, John Wiley & Sons, →ISBN, page 371
nounfat-finger (plural fat-fingers)

plural fat-fingers

  1. alternativeAlternative form of fat finger.

Origin

Cite this entry
APA

fat-finger. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/fat-finger

MLA

“fat-finger.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fat-finger. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “fat-finger,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/fat-finger.

Source: fat-finger on Wiktionary, CC BY-SA 4.0.