A snare is a fight between two life-long friends, usually about something extremely stupid, that results in the two people not being friends anymore for a couple months. The two people eventually realise how stupid they were being and become friends again. Their friends all hate them for it, but they know that it will happen again, so they ignore it.
Person 1: Makayla and Morgan got into another snare.
Person 2: Again? Oh well, it will just happen again.