boxing out 

the act of eating a girl out; going down on a woman

I was watching this porno, and out of nowhere, the black girl starts "boxing out" the Asian.

boxing out by Ben Solar System November 23, 2009

boning out 

Excessive indulgence in a source of enjoyment, often recently discovered

"have you heard 'Friday' by Rebecca Black?? I've been boning out to that sick jam all day"
"dude..."

boning out by Jay Dee L February 18, 2012

bosing out  

Adjective
1) A generic term for attempting to impress your peers.
2) Having feelings of sexual arousal whilst demonstrating your masculinity.
3) Can be used as a term for excessive consumption e.g bosing out on fairy cakes

Reference: Used by Arnold Schwarzenegger in the body building documentary "Pumping Iron".

Origins
The origins of the word have been hotly debated by academics and linguistic theorists worldwide. However, the most widely accepted explanations are: It is a combination of the words boss (a person who is (or believes s/he is) in change, and pose (to show-off); It is an adjective coined by bodybuilders in the late 70’s as a collective expression for the various poses they use on stage in ‘Mr. Universe’ style competition (e.g. “I was bosing out on stage in front of thousands of people”)

Modern usage
It has since been adopted by youth culture in the west where it is used as a prefix as well as a separate word (e.g. the scat-fest was bosetastic last night). This has led to the term transcending any singular or definable meaning and has instead become an attitude, behavior, comportment, appearance, style and Zeitgeist of post modern pop-culture.

bosing out by Sieb May 28, 2008

Boning out 

Taking Viagra just to get more random boners. Boning out feels good.

I took some Viagra just because I wanted to have more random boners. I like boning out.

I went to my cousins house so I popped some " V ". We created this boning out def.

Boning out by Harborside May 23, 2013

boning out 

leaving, exiting

"This party is boring, let's BONE OUT"
"Instead of staying at my Grandmother's house, I boned out"

boning out by Rebecca July 6, 2003