The meaning of the Acronym GJ is...

GJ is

• Grenade Jump
• Germans and Japanese

More Meanings For GJ:

• Good Job
• Goravani Jyotish
• Generic Java
• Gap Junction
• Gauss Jordan
• Great Juice
• Genius Jenny
• Geert-Jan
• Grandma Judy
• Grandpa Joe
• George, Junior
• Gordie Johnson
• Grandma Jo
• Grandpa John
• Grainger, Junior

GJ is also in:

• Electronics
• Food
• Funnies
• Mathematics
• Names and Nicknames
• SMS
• Software