concertainty 

A way of spelling the word "concerned" to scare people who have Hippopotomonstrosesquippedaliophobia.

"they look concertainty upon laying their eyes on the dead body.."
"What?"
(guy with Hippopotomonstrosesquippedaliophobia) "AHHHHHHHHHHHHHHHHHHHHHHH"

concertainty by kid who likes dani September 22, 2023

concertginity 

The act of going to a concert for the first time (essentially losing one's virginity of experiencing a concert)

"That was an awesome concert to lose my concertginity to!"

concertginity by brentionary March 17, 2009