OK Ralph, I'll give it a try.
I'll say that his tongue counts as "any part of his body" and the result of the play is a TD. However, Tugboat committed a foul when he spit out his mandatory equipment during the down. Lucky for him, the penalty is enforced from the succeeding spot, so score 6 for Tugboat, and get him some mouthwash because he will surely need it after licking the dirt, grass, chalk, and whatever else.