When a person with the arrogance and/or ill-placed confidence of youth attempts to explain something they’ve barely grasped themselves to a person with significant experience in the field.
Did you just trainsplain programming concepts to me? I was writing code when you were still sleeping on rubber sheets. Disrespectfullittle shit.
Originally, a joke from "comedian" Tom Meyers detailing an experience at a 7-11 convenience store. A customer somehow communicates to Tom that the customer had a sick friend or family member. Tom observes a customer purchasing an assortment of junk food, then his sharp comedic mind generated the punchline for this infamous joke.
"looks like someone had a bong hit transplant!" Bam! The legion was born. The advance quality and sharp mind of this comedian got the attention of the Cum Town podcast. This "joke" remains the longest recurring joke on the podcast, the r/cumtown subreddit and the entire comedy world.
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 pickingpotatoes"
"Class tansplaining"
- would be the desired (but impossible) procedure of swapping a person's personality for another personality
Ex.1
Jim: I would so love rearrange that assholic douchbag's face with just one kick or one punch!
Bob: Dude! That wouldn't change the situation. That psychoticdouchebag needs a 'personality transplant'.
Ex.2
Jim: I am such a loser!
Bob: That's nothing a 'personality transplant' wouldn't cure.
Ex.3
Jim: I think Jane needs a 'personality transplant'.
Bob: Jane would have to have a personality, first. Jane needs a 'personality install'.