Nug is a word used for an attractive women/girl that you don't tend to have a close relationship with. Just tends to be a girl walking by or a girl you have short relations with leaving the word with a shallow connotation. Short for nugget, as in gold.
In some cases, nug means respect.
When some rudes float their clenched fist in front of you, and ask for some nug, dont throw over your possesions and run away screaming like the little indie kid you are.
Just try and look cool. Go with the flow.
Give them the nug, and walk away safeley.
When you remove the content from someone's school bag then turn the bag inside out and put content back in and zip the bag back up. This is best done right before class is over because then they have to carry their bag in the hallway (because the straps are on the inside).