A feeling of sympathy for al Qaeda that inspires local terrorists to carry out attacks on the U.S., even though there was no previous affiliation between the groups.

When the local terrorist group saw al Qaeda getting pounded on TV, they were overcome with an attack of sudden jihad syndrome (SJS), and decided to strike the nearest soft target.

sudden jihad syndrome (SJS) by Joe Rodolico January 8, 2009

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Sunderboob

When a girl pulls up her shirt exposing her breasts pushed together but not showing the nipples.

She sent me a sext with sunderboob

Sunderboob by LibraryGirl February 24, 2015

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Suddenly, Pineapples

A phrase that means something random that neither helped nor hurt anyone.

Man 1: "I am depressed"

Man 2: "Suddenly, pineapples"
Man 1: "THIS DOESN'T HELP!!!"

Suddenly, Pineapples by Furiousteddybear May 29, 2020

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Sudden Onset Autism

Sudden Onset Autism, or S.O.A for short, is an extremely rare condition of unknown origin. Development of this disease is both abrupt and severe. As of now, the pathogenesis and mode of infection have eluded even the most qualified of research teams at Harvard, Hopkins, and Yale. Some have suspected that transmission occurs through contact with an infected person, especially prandially. There is still hope for a cure, although we may be decades away.

Infected Person: Hey man, let's go grab some lunch
Healthy Individual: what?! It's 3 in the morning. What's wrong with you
Infected Person: Well... it's lunchtime somewhere!
Healthy Individual: Oh God, you have Sudden Onset Autism... Please go away from me!

Sudden Onset Autism by burner90 May 14, 2018

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