Speaking in a slow monotone, especially on a highbrow or difficult to understand topic, in a mind-numbingly boring manner; akin to a lullaby droning puts listeners into a deep slumber in places where sleeping is inappropriate.
The act of being either drunk or high and just sitting around doing nothing. This is not something to be proud of, you aren't socializing with girls or doing anything progressive. You are killing your buzz and no one likes a drone.
The act of lying about your beliefs to potentially attract a partner; or, the act of using UAV's to bomb civilians; or, using social capital to interfere with and/or influence a political process.
I was having a conversation with my friend and I didn't realize my girlfriend was drowning in on me when he quietly asked me if I wanted a cigarette. I whispered no thanks; and she yells from the other room, "your smoking" again and I yell at her "STOP DRONING" in on my conversation and not you have something to say when you didn't even hear what I said.