very sad and full of self pity

teary, overemotional

of, like, oil; covered or soaked with oil

fatty, greasy

having to do with emotions (and not practical or sensible judgement); producing, expressing, (often too strong) feelings

emotional, romantic

done efficiently and well (but perhaps with a little deceit)

smooth, polished

(of a surface) smooth, wet, polished etc so that it is difficult to stand or to move on, or hold; needing care

smooth, slick