Noun - The feeling two or more people feel simultaneously when something is very sad and/or dissapointing.
Ben and Katy drove to Wendy's to get Ben a chocolate Frosty. When they ordered a chocolate Frosty, the man told them the chocolate Frosty machine is broken. Ben had to get vanilla. Ben felt depressed, and so did Katy. They were feeling mutual depression.
by steven412 August 16, 2010

Two statements are mutual excusives (and hence, mutually excusive) if they are each given as excuses as to why one can't take part in the other, whilst hiding one's genuine plans.
Sarah: "Sorry Dave, I can't come to the cinema with you later, because I told Louise that we'd have a girls' night in."
Then later,
Sarah: "Sorry Louise, I can't come to girls' night, I promised Dave that I'd go to the cinema with him."
Thus, "going to the cinema with Dave" and "having a girl's night in with Louise" are mutually excusive.
Then later,
Sarah: "Sorry Louise, I can't come to girls' night, I promised Dave that I'd go to the cinema with him."
Thus, "going to the cinema with Dave" and "having a girl's night in with Louise" are mutually excusive.
by JTFYM December 4, 2012

These are friends on Facebook that you and another person have in common. That is, both of you know those people.
by surf4ocnj October 19, 2011

Its when two fat people try to fuck but cant because of their bellies ( in the way) so the both agree to masterbate
by 1212inc. February 7, 2014

by SkateNazi666 March 20, 2019

It's that thing when a couple is on their MacBooks on a Saturday morning, reading blogs and streaming music and drinking coffee.
Alice and Bob missed brunch with friends because they spent all morning enjoying mutual MacBookbation.
by Bill Frink November 16, 2012

Knowing someone through marijuana. Marijuana being the reason for 2 or more people knowing each other
Dave recently bought some weed from his new connect, Bob, the two are now Marijuana mutual. marijuana mutual
.
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by Shhh91 June 28, 2011
