when something has gotten passed your defenses and disrupts your train thought. in most cases it is a person, however non living things could be applied. introduced by the esteemed Dr. Octagonecologyst, when someone is in your corner, its like saying check in a game of chess"
You better watch out bitch, I'm in your corner!!!
Bryan:ey cliff what you up to?
cliff: geometry is so in my corner right now.
Bryan: fuuuuhx, aight late!!