SNIT
In this context, “SNIT” is a playful or creative representation of the term “tizzy.” Both “tizzy” and “snit” are informal expressions used to describe a state of agitation, fussiness, or nervousness. If someone is in a “tizzy” or a “snit,” it means they are in a state of emotional turmoil, annoyance, or upset. The use of “SNIT” here seems to be a whimsical way of capturing the essence of the word “tizzy.”