Lubricate /(?)/

Lu·bri·cate

Lubricate

v. t.
  1. To make smooth or slippery; as, mucilaginous and saponaceous remedies lubricate the parts to which they are applied.
    Supples, lubricates, and keeps in play, The various movements of this nice machine.
  2. To apply a lubricant to, as oil or tallow.
  3. To reduce social frictions or difficulties between people, thus making cooperation easier and joint action smoother.
  4. To inebriate by supplying with alcoholic beverages. [slang]