side-text

While texting a group of people you and one of the people in the group also have a private texting conversation

I side-texted Vin to give me excuse get out of Jay's group message to hangout.

by Dk683 October 7, 2014

side-texted

When you are engaged in a social media conversation (i.e. FB status) and one of the commenters texts you when they disagree with what is being said or have additional private information.

Mary side-texted me after she saw what Asia's response was to her Facebook status.

by SMG83_WS January 8, 2014