fat-finger problem

(名詞) 胖 (手) 指問題:在按鍵或觸控螢幕太小的裝置上容易按錯或觸控錯誤的問題。亦寫成 fat-fingers problem, fat finger problem

Sizable erase and undo buttons at the bottom of the screen let you fix mistakes easily. Nevertheless, anyone who suffers from the so-called "fat-finger" problem or has stiff or arthritic hands should approach the game with an ounce of patience.
—Jill Duffy, "Trainyard Express (for iPhone)," PC Magazine, February 14, 2011

The most striking observation from testing the Fire is that everything is much too small on the screen, leading to frequent tap errors and accidental activation. You haven't seen the fat-finger problem in its full glory until you've watched users struggle to touch things on the Fire.
—Jakob Nielsen, "Kindle Fire Usability Findings," Jakob Nielsen's Alertbox, December 5, 2011