You might try a mouth wash and/or a tongue scraper.
Rough as toast
dry/rough tongue......
The surface of the tongue has a rough textured upper surface due to taste buds. The lower surface lacks taste buds and has therefore a smooth texture.
Pandas feel like a big soft teddy bears, but you wouldn't want to touch one because it would attack you.
It feels like a cats tongue and if you don't know how that feels it is like sandpaper.
The Rough tongue a snail uses is named RADULA which are tiny rows of teeth.
The papillae give the tongue a rough-textured surface which allows the tongue to move food to the back of the mouth more easily.
It feels rough
Yes, you can definitely get a callous on your tongue from a rough back tooth. You can go to the dentist to have this taken care of and sawed down.
The rough hair-like material on a cat's tongue are called papillae. The papillae help cats groom themselves, eat and drink.
they have large covere with hard sharp bones
A rough patch in the middle of the tongue could just be a sign of a dry mouth. Try drinking more fluids or sucking on a sugar free sweet.