a picture, something in your mind...
Something kids work too hard on to establish and maintain for themselves. Image-seekers are often quick to label themselves and don't give a caca bar about anything beyond their own skin... Will go into super-bitch mode if contradicted.
"Dude! Try not to appear smart or crack any jokes! It might wreck MY IMAGE!!!"
The overall outlook of a place, person, or thing.
This brother has a nyce image about himself
When used as a verb, it means 'imagine.' Used in this context by granola crunchers (who are notorious for using lots of jargon to disguise their lack of confidence in themselves and/or what they say) and by those who feel silly admitting that they can still imagine.
If you image yourself acing that test, you will ace it.