1.The act of consuming alcohol in order to prepare oneself for interaction with other humans, especially in unfamiliar situations.
2. An excuse.
I can't get to the party untill I get a little social lubrication.
social lubrication takes place when two or more people get together and have a few drinks and things start to flow much easier than without..drops the inhibitions
The two couples were experiencing social lubrication in the hot tub after many margaritas when the blood started running to lower extremities...