The country girl lost her shoes ginger like; she will forever be your MSF

Jenny is Kirsten's newest MSF.

Steve: Man that pisses me off!!!
Dan: What is wrong with you? it it MSF time?

When a man is talking to a group of women (can be generalized to other social interactions), sometimes one woman, usually the least attractive of the group, is not getting enough attention. While everyone else is laughing and having fun, she tries to interrupt by saying, "let's go somewhere else," or "I'm tired;" or verbally attacks the male suitor. She is an MSF.

Louis Theroux is married msf