aura

Someone's level of mysteriousness/ominous/nonchalant/savvy (it can also mean how intimidating someone is). Aura is very contextual, like if someone walks into a room with a hard fit and everyone looks their way, you could say "that's aura." The word is usually used in a half-joking manner because it's kind of corny to see another person and say they have aura while being dead serious.

The reverse is also true, if someone does something embarrassing, it could be considered "low aura."

"Everybody's too scared to challenge him to a fight."
"Damn, he got aura."

"That mf fit clean as hell."
"That's aura."

*Guy trips and falls after trying to act nonchalant
"There go his aura."