This gal has had hers pierced for 6 years already.

The actual piercing itself wasn't so bad as the recovery period. They get clamps, grab on to your tongue, and then PIERCE! My mouth turned into the Board of Water Supply with all that drool.

I couldn't eat hot foods and noodles because my tongue was sensitive for about a week and I was afraid that any noodles would get tangled onto the barbell.

I have no regrets, and three chipped teeth later...I have no plans on taking it off for a while.