Having a wank with a friend or group of friends.
Just off for a mutual with Ben.
by Rich Irvine May 1, 2008
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Person #1: Yea, that new Sublime song is pretty good
Perosn #2: Yea, that's mutual
by The Other Kunal March 22, 2006
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one of the coolest features of facebook. another way of saying the number of mutual friends you have with someone. considered by Facebook© to be an accurate indicator of how good friends you will be with somebody, although often it's not the case in real life.

Chart!

1-5 mutual friends — decent
6-20 — fair/good
21-100 — strong
>100 friends — very strong
>>1000 — soulmate
0 — no mutuality
Dude 1: Dana and I have like 221 mutual friends together on facebook. it is evident our mutuality bonds us together

Dude 2: I have like 987 mutual friends with Bob, but I don't want to "friend" him because we've never actually talked in real life
by go_agggggiess April 6, 2010
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When two people love each other the same...and they don't cheat on each other.
Muffet and Kendricks love is mutual, they love each other the same and they do not cheat on each other. That is some REAL LOVE.
by Ciiiana January 7, 2006
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When a man and a woman simultaneously achieve orgasm together during intercourse or 69.
Coco: You ever hold it in during sex if you know she is about to cum?
Jon: Oh all the time, its the greatest feeling.
Coco: True, fuckin mutuals.
by Circumsized Hen November 21, 2009
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Where no feelings are involed in the act of making out (kissing passionitely) between two people.
Austin found a mutual to make out with
by chazzels22 July 8, 2011
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