Multiple choice general knowledge fat finger ? None of the below Abnormally sized Potato chip Having a swollen finger The act of performing a typo Reveal answer Fill a bubble to check yourself D Correct answer Explanation 'Fat finger' refers to making a typo, especially on touchscreens where your finger might be too large for the small buttons/keys. The other options (abnormally sized potato chip, swollen finger) are literal misinterpretations of the figurative term.