backchannel

Getting someone's personal contact information so you don't have to communicate with them through a public means.

We were having a conversation on a public web site, but I wanted to backchannel her so we could get more personal.

by Biggety Big September 17, 2006

backchannel

The preferred GOP term for anal sex.

Jared Kushner wanted a backchannel with the Russians.

by jd314 June 1, 2017