non-binary gender (concept)
Non-binary and genderqueer are umbrella terms for gender identities that are not solely male or female—identities that are outside the gender binary --wikipedia.
Culture
anime
Hand-drawn and computer-generated animation originating from Japan -- wikipedia.
"If you can't handle me at my worst, you don't deserve me at my best"
T-shirt slogan and Internet meme.
percentage of people with Cluster B personality disorders in the USA
Priority request: "It appears to be an epidemic but perhaps it is just getting more publicity." Cluster B includes antisocial, borderline, histrionic, and narcissistic personality disorders.
a problem
A situation, matter, or person that is hard to deal with or understand. A personal matter that causes one difficulty or needs to be dealt with -- American Heritage Dictionary.
superstition
Irrational beliefs at odds with scientific knowledge of the world.
honorifics
"a form of address conveying esteem, courtesy or respect. These can be titles prefixing a person's name, e.g.: Mr, Mrs, Miss..." -- wikipedia.
NoFap
A movement to give up pornography and masturbation.
cosplay
Cosplayers wear costumes and fashion accessories to represent a specific character. Cosplayers often interact to create a subculture, and a broader use of the term "cosplay" applies to any costumed role-playing in venues apart from the stage -- wikipedia. By request.
Blackstone's ratio
"It is better that ten guilty persons escape than that one innocent suffer." The phrase was absorbed by the British legal system, becoming a maxim by the early 19th century -- wikipedia. By request.
manchild
A man who is chronologically/physically an adult, but mentally/emotionally immature -- wikipedia.
hentai
Anime (animation) and manga (graphic novel) pornography influenced by Japanese cultural and historical attitudes toward sexuality -- wikipedia.
meritocracy
"system in which economic goods and/or political power are vested in individual people on the basis of talent, effort, and achievement, rather than wealth or social class. Advancement in such a system is based on performance, as measured through examination or demonstrated achievement" -- wikipedia.
giving / buying flowers for someone
If you're picking a girl up for a date from her house, and you're meeting her mother for the first time - buy the flowers for your girl -- instructables.com.
social media influencer
Calibrated as an occupation or profession.