To possess large arms; when one's arms are particularly large.... for instance after lifting weights. Derived from the word "guns" (or arms).
Tamara: "Nick, where have been all fukkin' day?"
Nick: "Chill out, big girl. I've been pumpin' some iron."
Tamara: "I can tell. You look all gunned up, you handsome devil."
The slang term for tripping off DXM (Dextromethorphan). The trip from DXM is intense. Theres about a 50% chance of what type of high you will have either you will trip the fuck out but be able to converse with others. Or you will be completely dissociative in your own little world lol good luck!!!