sibcon 

someone who is romantically/sexually invested in their sibling. gender neutral for someone who has a "brother/sister complex".

did you hear about @twitteruser? they're a sibcon!

sibcon by alphonse enjoyer March 3, 2023

Indian Subcontinent 

The Indian subcontinent or the subcontinent is a southern region of Asia mostly situated on the Indian Plate it usually includes the core lands of India, Pakistan, Bangladesh, Nepal, Bhutan and Sri Lanka at times Maldives is often included as well.

Indian Subcontinent were Hinduism,Buddhism and Sikhism originate.

Indian Subcontinent by Asian43212 June 12, 2016

Subconscious mind 

Part of the mind which aren't fully aware.
But controls one action's and feelings.

I tricked my subconscious mind into thinking i'm a billionaire!

Subconscious mind by aslpaul3939 November 24, 2020

Subconjunctival Hemorrhage 

Subconjunctival hemorrhage is a broken blood vessel in the eye caused by a lack of the following: vaginal intercourse, anal intercourse, cunnilingus, anilingus, kissing, flirting, fondling, hugging, and a lack of loving text messages from someone special.

The condition is self-resolving with an adequate amount of TLC from the appropriate person. Preferable done away from life, for a minimum of two nights...just you and me...secluded from the world.

Betty: Dude, my eye... I've got a bad case of subconjunctival hemorrhage thanks to you.
Bobby: Get your naked ass over to my house and I'll make it better.

Subconjunctival Hemorrhage by BettyVega April 21, 2014

Siscon 

A person with an unusually strong and probably sexual attachment to their sister. One of the numerous Japanese "complex" portmanteaus that indicate real-life creeps and fictional doujinshi protagonists.

Siscon as seen in "Rabu Rabu Eien <3"
Ani: Natsuko, I... I've always been watching you...
Imouto: Oh Oniichan! I love you too! Let's have sex!

Siscon as seen in Real Life
Ani: Natsuko, I... I've always been watching you...
Imouto: Get away

Siscon by nekokirai October 14, 2008

subconscious flirting 

verb:

1. The act of getting the interest of another person, usually of the opposite gender, without putting thought into it before doing it, and capturing that person's attention. A function of an individual's personality.

2. What an individual is doing when he or she flirts without even knowing his or her actions are perceived as some type of flirt, whether it be simply making a wise crack for a smiling; or, with direct eye contact and raised eyebrows, a simple innocent flirt could be perceived as having a more romantic tone.

Either way, over time, it can lead to serious attraction.

Women discuss how a guy is so funny and he's such a flirt.

He thinks he can't flirt and he completely misses that he is perceived that way by a majority of women with which he comes into contact each day. All he knows is that he makes wisecracks that get a laugh from the ladies and he loves an audience, the smaller the better. What he does is subconscious flirting, and he may be perceived as a persistent, non-stop, incessant flirt without intending to be.

Weeks, months, years or decades later, someone clues him in to the previously-existing or newly-found magnetic attraction.

subconscious flirting by Annie Nomus December 26, 2011

Sibbons 

A person with such a bright red face that It can be known to glow in the dark.

Person 1: "OMG can you see that guys face glowing in the dark?"

Person 2: "Indeed, he is such a Sibbons!"

Sibbons by TheFlock January 2, 2010