Teensplaining 

When a teen condescendingly assumes that they know more about a topic than the adults around them, usually their parents. The teen then explains the topic to the adult as if the adult is completely ignorant regardless of their experience or expertise. This is frequently accompanied by the extreme certainty that can only be maintained through inexperience.

Maya was teensplaining to me that intelligence is about 75% heritable.
"You'd know that if you weren't such an idiot, Dad!"

My daughter teensplained pop music to me, as if I hadn't lived through the 80s.

Teensplaining by ZippySanjay June 21, 2017

teensplaining 

Similar to mansplaining but with a teenager who firmly believes he/she/they know everything, and are therefore obligated to explain it to you. Often accompanied with an eye roll followed by stomping and a door slam.

(Mom and Teenager watching Home Alone)
Teen: Mom, wait until you see what happens when the power goes out.

Mom: You mean when their phone lines are down?
Teen: Did know that phones went down back then?
Mom: Yes.
Teen: Well, it was because there weren't cell phones and they had phone calls go through wires.

Mom: I know. I was a kid at the time.

Teen: But this is different, Mom. You just don't understand! (Eye roll / stomp away)
Mom: I cannot believe he just teensplaining me about something I experienced 30 years before he existed! How does he think she automatically knows more than me and has to explain it?

teensplaining by Bananago December 7, 2020

Tansplaining 

When a British person (tan) explains something thats blantantly obvious/false in a condescending manner to an Irish person because they're British, think they're "great" and have no grasp on their countries history.

"You know you Irish should say thanks to us if we didn't invade you you'd still be picking potatoes"
"Class tansplaining"

Tansplaining by Glue Potter November 7, 2019

transplaining 

When a trans-person tries to explain your sexual identity or orientation to you contrary to the fact that this is a personal choice and everyone has the right to identify as they please.

Person A: I'm super-straight
Person B (trans): That's transphobic, genital preference isn't a sexual identity..
Person A: Please don't transplain to me, I know what I am and it's not for you to decide. Transplaining is superphobic.

transplaining by mexican_jesus March 11, 2021

Transplaining 

When a Transgender person or an ally tries explaining sexuality and science to Super Straight people and tries to invalidate their very real and valid identity in the process.

Trans: there's no such thing as a biological female read up on your science. And Super Straight can't be a sexuality it's a preference.

Super Straight: You're Transplaining. I don't know where you're going with this... But it's not in Super Straight pants.

Transplaining by SuperMfundo March 10, 2021

Transplaining 

When a transgender person (generally who was previously male and has transitioned or is in the process of transitioning) continues to exhibit "mansplaining" behaviour, but not longer associates with that gender.

"OMG I was just showing them my makeup routine, and they started transplaining to me about why I shouldn't be using that foundation for my skin."

Transplaining by mrteacher November 26, 2020

transplaining 

When transgender individuals complain about their self-created drama to their eternal spouse Tumblr, under the impression that the rest of the world is to unquestioningly conform its will and behavior to their demented ramblings. Spinoff of mansplaining

TAL9000 is the transplaining champion.

transplaining by SwarmGoddammit September 21, 2013