Two people have a conversation in a public area. People overhearing the conversation find nothing of interest in it; it seems to just be idle conversation. Even the reader notices nothing unusual about it. For the two talking, however, it has a more sinister meaning. Frequently, one is blackmailing or otherwise threatening the other in a sort of "code" they both understand. See Shame If Something Happened. Subtrope to Double Meaning. Obviously a pun on "Double Entendre." Contrast Talking Through Technique. Examples of Trouble Entendre include: