When someone txts another person within the large group of people who are having a conversation. Used to secretly get information or to make fun of someone in the group.
1)last night, mike forgot that girls name, and he didn't want to ask it again, so he sneak a txted me and i got it for him.
2)chris was telling his stupid stories about highschool and could tell everyone else was sick of them from the amount of sneak a txts i got while he was talking