Really long.
This guy, Nick Stoeber, could probably get down to the bottom of a lollipop in just one lick. No lie.
He holds the Guinness World Records for the longest human tongue ever. And the proper way to measure this, is to stick out your tongue and close your mouth. The part of your tongue sticking out from your lips is what they measure.
And Nick… his tongue stuck out a good 4 inches from his mouth. That’s about the entire length of a normal person’s tongue (from the base to the tip).
So his tongue is extra long. Granted, he may be able to extrude it longer than the average person, but still, I’m pretty sure he could lick just about anything. Even his elbow.
So how long is your tongue? Grab a tape measure and find out…