Gackt 

A J-rock drama queen diva that is not as talented as people say he is, and is using money to get into video games to spread his evil legacy. He is sleeping with Tetsuya Nomura, the man responsible for Final Fantasy VII and Kingdom Hearts. He makes a cameo appearance in Dirge of Cerberus as an almost God-like character. Lame...

Stop gackting, and get a life.

Gackt by Lolita Doll May 16, 2006

Gackt 

The worst insult someone may get. It's a combination of every single bad words and insult in the world. If you are ever named a Gackt, better think about how your life is turning out and how you should end it.

"Omg you're so Gackt"

"Geez you sound just like Gackt, but worst"

"you Gackt"

Gackt by random432 June 12, 2008

Gackt Camui 

Full name of the Japanese rock artist Gackt. Believed by many narrow-minded idiots as "OMFG hes such a fag," defended by over-obsessed fangirls as entirely straight, but even we fans without remarkably low intelligence levels aren't really sure.

"OMFG Gackt is a RETARD!!!!111"

"omfg gackt is SEXY!!!!!11111!!"

Gackt Camui by Kipper May December 23, 2004

Gackt Job 

1. Full plastic surgery to your face (Nose job, Chin job, etc.)

2. Having sexual intercourse for 8 hours straight.

Yuu::That gackt job was exhausting::

Gackt Job by SunnyBby July 6, 2009

Gackt Camui 

A sexy japanese rock singer; was once the vocals for the famous visual kei japanese band Dir en Grey. He left the band after some incidents happened, and pursued a solo career with his backup band, GacktJOB.

Gackt is the greatest!

Gackt Camui by Kacie April 25, 2005

gackk 

Extremely disgusting sex move. when a girl is giving a guy a blow job, he jams his dick far down her throat making her gag and cums at the exact instant the bile reaches her throat.

Dude! I totally gackked her last night!

gackk by differin12 June 24, 2005

gacked to the gills 

Obscenely high on any substance.

My boy Tommy is always gacked to the gills on some substance or another. That fool's crazy!

gacked to the gills by Quailsareneat December 30, 2011