a situation between two people in which one forces the other to be friends, often by suggesting doing activities together that friends would do but that the other person cannot turn down without seeming rude.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

When persons pretend to be friends on a regular basis so often that they actually develop a small friendship, even though they can't stand eachother. People will do this for any number of reasons, though commonly it is done to avoid drama or an ass kicking.