1 doctor agreed: 1  Pimple: Is a very generic description. 2  Pimple on tounge: It can be benign, but have it checked with an oral surgeon, they may take a a biopsy to be sure. 3  Yes, it is: Hard to say what it is.  Inflamed Papillae: What may appear as a pimple on the back of your tongue could be an inflamed taste bud. Also, tonsillar tissues are located around the throat in this area in a 'ring' pattern, that may be enlarged or inflamed. Finally, some lesions of this type may be related to oral cancer or std's.