To close a window or a browser tab by clicking on the button to close it, in most cases a box-shaped button with an 'x' at the right corner of the window or tab.
This story was brainless, so I closeboxed it and read a better one.
One who secretly smokes methamphetamine out of hookers buttholes using a special ass bong device. It is like a normal bong except that the bottom is open, allowing the water chamber to be the rectum of said hooker.
Bro: "Yo man I heard Randy is a closet candy crusher. Dude smokes ice out of skankbooty."
Bro2: "Damn, I knew I shouldn't have let him borrow my assbong. Oh well YOLO!"
Bro: "Nasty mang, you probably got mouth herpes now."
(noun) Someone who masturbates (i.e has a "toss") but never admits to it (either because they think it's disgusting or otherwise). Girls make up the majority of secret tossers.