look up any word, like cunt:
 
3.
when someone or something is riskayy and/ or likely to get caught in the act opposite of low key
Drinking a keystone with a car full or people blasting music with the windows down late at night is high key.
by smelly1222 October 26, 2008
 
1.
when somethin needs to be said outloud so every can here; opposite of low key
aye high key tho, that female is extra fine
by H-Weezy January 02, 2009
 
2.
The opposite of Lowkey.

Straight up.

The truth.

Stating truth.

Obviously.
"That bitch be hella fine!" - Bro

"Highkey bruh! Look at that ass!" - Homie

"Im tryna smoke yo" - Stoner

"Want some tree?" - Dealer

"Highkey." - Stoner
by King Perlow March 09, 2012
 
4.
High-Key
If we say a painting is "high-key" we mean that most or all of the image is light or pale in value. For example, colours mixed with white, called "pastels" or "tints", are high-key. It's the opposite of "low-key", of course.
"That painting is very high-key!"
by LeonaLejon June 23, 2005