My dog "corn on the cobs" everything, anyone have this problem?

Well this doesn’t bother me all that much as it is not destructive in any way but my dog does what my friends and I call “corn on the cobs” things. He will bite things like pillows, blankets, skin, anything with a little something to grip. He will repeatedly in repetition nibble on something. He has a slight underbite and I think he can’t get a good grip because when he does it to me on occasion when he gets excited, it does not hurt, it almost tickles. He usually does this when he is very excited. I think he is letting out frustration or his excitement? I suppose it’s behavioral but does it mean anything in particular? I hope I explained the action well – it’s hard to give great detail on it but picture a dog eating corn on the cob and trying to nibble the kernels off of it lol He even works his way in a line sometimes like is in a race to get to the other side of the cob lol.