the act of getting super ghetto previous to a large fight or throwdown. getting your hood on can involve bustin' a cap in someone's ass or hittin' up some hot bitches.
"yeah thurrs a street fight tonight so i better get ma hood on."
"shit did you see kayleigh lastnight? dat bitch had her hood on."
"whut cho say! boi, you got cho hood on so far that you think you can take a bullet like 50cent yo"
"aww snap gurrl, you gone and put your hood on. dat makes me ruul horny"