Common term or single word for someone who is embarrassingly over-complimentary

Does English have a word for someone who compliments another person in a way which is awkward or even embarrassing?

Someone who uses compliments which are overly-familiar and all but inappropriate, and praises someone they barely know in over-the-top fashion?

Solution 1:

Fawning

From the ODO:

adjective

Displaying exaggerated flattery or affection; obsequious:

Example:

'fawning interviews with Hollywood celebs'

Solution 2:

As touched upon in a previous answer, obsequious fits the bill somewhat.

Full of or exhibiting servile compliance; fawning.

thefreedictionary.com

Solution 3:

I'm fond of “unctuous” :

unctuous

Excessively flattering or ingratiating; oily: he seemed anxious to please but not in an unctuous way

from the ODO