The meaning of the Acronym GMC is...

GMC is

• Garage Man's Companion
• Generally Mediocre Cars
• Generic Made Chevy
• German Milk Cow
• Get More Chicks
• Gets Mechanics Crazy
• God's Mechanical Curse
• Got a Mechanic Coming
• Great Mountain Climber
• Great Motor Car
• Giant Metal Chickens
• Get More Cash
• Gonna Make Cars
• Great Mistake Company
• Give Me Cash
• Great Mechanical Creation
• God Made CGI
• God Made Chevy
• Good Mexican Cars
• Give Me Chlorpromazine
• Gay Man's Caddy
• Grown Man Crying

More Meanings For GMC:

• Global Module Cache
• GNU Midnight Commander
• Geometric Model Companion
• Global Motion Compensation
• Grant Mac Ewan College
• Got More Crap
• Garage Man's Companion
• Generally Mediocre Cars
• Generic Made Chevy
• German Milk Cow
• Get More Chicks
• Gets Mechanics Crazy
• God's Mechanical Curse
• Got a Mechanic Coming
• Great Mountain Climber

GMC is also in:

• Adults
• Databases
• Funnies
• Mathematics
• Physics
• Software
• Universities