To expand on the above definition (absolutely hilarious, by the way), lego fingers may also include red palms and fingers, and/or itchy hands.
Friend: Man, why are your hands all red, and why do you keep scratching them?
Me: Dude, building that giant castle gave me an intense case of lego fingers.
Me: Dude, building that giant castle gave me an intense case of lego fingers.
by ISZK July 11, 2006
When you have been playing with lego for an extended period of time, and your fingers start to hurt from the sharp edges.
by Soemundur November 17, 2004