Sienna Syndrome is a type of syndrome where you have a crush on a girl. Once you do, you forget she is in your presence and start acting goofy, inappropriate (as a joke), and weird in front of your friends which makes you laugh. Your crush gets weirded out and there is never a chance for a second impression, though you can still come close to her if you are somewhat of her type and improve. Not guaranteed though. Men, be careful! It may be uncurable if you aren't careful and do it for long periods of time without knowing she doesn't like you for a while.
Me: *acts weird in front of friends and makes them laugh and say something just as weird back*
Crush: -in the distance- Wow, he is kind of weird. I'm going to try and avoid him.
3 MONTHS LATER...
Me: Hey -----!
Crush: Oh it's him.. Hi.
Me: *walks away* How can I make her mine?? It is so weird how she is acting
GOD: The irony is crazy! >:) He definitely has Sienna Syndrome.
Crush: -in the distance- Wow, he is kind of weird. I'm going to try and avoid him.
3 MONTHS LATER...
Me: Hey -----!
Crush: Oh it's him.. Hi.
Me: *walks away* How can I make her mine?? It is so weird how she is acting
GOD: The irony is crazy! >:) He definitely has Sienna Syndrome.
by J@cob_TRUTH February 13, 2024

After the women gets the d, in addition to the numbness of the lower limbs she becomes delusional and can no longer muster any rational thoughts and becomes hysterical because she has quite literally had her mind fucked.
I fucked Stacy so hard last night she went A.D.D.S. (after dick delusion syndrome) and started talking about her moms birthday party!
by The master of the d September 30, 2013

IMMM Syndrome or “I Miss My Man Syndrome” occurs when a girl, well, misses her man. Usually used by girls in healthy relationships 🙂 ↕️ She’s usually always talking about him. She even misses him even if they were separated but a few minutes earlier
“Laila is always talking about her boyfriend, it’s genuinely so annoying” “She can’t help it. She has IMMM Syndrome 🤷🏾 ♀️”
by @pp1ec00chi3 November 23, 2024

by EpicN3ss October 6, 2021

a combination of symptoms that occur regularly together, or a disease defined by a group of linked symptoms.
by Arminkshipper June 16, 2024

A innate disease within Mirpuri Pakistani parents in which they favour their beloved Sons (Munde), regardless of their behaviour and actions. With a failure to recognise ANY shortcomings in regards to their son.
by Munde December 29, 2023

When your body begins to shut down right before your shift, you begin to feel really sick. (Often caused by stress from work)
by Judie Bloom January 3, 2016
