oleaginous, oleaginously, oleaginousness 1. Containing or producing oil. 2. Containing an unusual amount of grease or oil. 3. Similar to oil in nature or consistency. 4. Unpleasantly eager to please, charm, or to be of service to people. 5. Unpleasantly and excessively suave or ingratiating in manner or speech; such as, 'oleaginous hypocrisy' or ... Found on http://www.wordinfo.info/words/index/info/view_unit/1457/