Skip to main content

Sexually Incompatible Syndrome a/k/a SIS

Sexually Incompatible Syndrome a/k/a SIS A condition that occurs between two completely unsuspecting individuals, that otherwise seem to have the perfect ingredients for an extremely successful romance, and instead it turns into a SISmance. Only cure is abstinence and despite any hopes of the condition resolving it is a lifelong chronic condition. Not to be confused with other sexual conditions that are commonly symptomatic of SIS Syndrome, i.e…. Erectile dysfunction , Premature ejaculation , Inhibited or hypoactive sexual desire. What makes SIS Syndrome unique is the male partner has normal sexual intercourse with other women, even women he is not remotely attracted to, it simply is his SIS mate that he totally digs on all levels yet is frustratingly unable to complete the act of sexual intercourse with her. The syndrome is frequently overlooked after a couple unsuccessful encounters and instead blamed on drug induced conditions like intoxication. However after many failed attempts, and mornings of feeling completely unfulfilled, it becomes apparent the couple suffer from SIS. The SIS couple typically decide to remain friends, continue to dine, laugh, and flirt, although abandon any further attempts at sexual intercourse. On rare occasions the friendship simply can not survive the disturbing memories of the frustrating failed attempts at sexual intercourse.
Sexually Incompatible Syndrome a/k/a SIS a/k/a Sexually Incompatible Sister Syndrome (SISS)

I met this great guy we totally hit it off, same circle of friends, talkamania, laughamania textamania, kissamania for weeks. I’m sexually attracted to him, he cant keep his hands off of me, but when it comes to putting it in and finishing the job he’s a total no show... its like I turn into his Sister….damn SIS Syndrome! I even caught up with him a decade later and it was like twilight zone…. déjà fuckin vu!
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.
More from Urban Dictionary

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
Adjective. Used to describe persons who have adjusted or altered their lifestyle for environmental reasons. Crunchy persons tend to be politically strongly left-leaning and may be additionally but not exclusively categorized as vegetarians, vegans, eco-tarians, conservationists, environmentalists, neo-hippies, tree huggers, nature enthusiasts, etc.

Also used to describe establishments where alternative foods and products are sold, i.e. natural food stores.

Modified derivative of granola.
"I need more crunchy guys in my life. I'm so tired of dating preppy metrosexual assholes."

"I'm heading out to the crunchy store to pick up some fair trade chocolate and tea tree oil, do you need anything?"
crunchy by EBC July 11, 2007
Word of the Day on September 24, 2026
Load more