being proficient in something
Kumar is very good at Excel. Someday he will make movies with it.
A word used as an excuse for procrastinating when you should be programming.
Why are you guys not coding? - It's compiling...
To be sloppy as fuck or to take the dirty short cut. Comes from the practice of putting a white box over a part of a figure that you don't want to show on a powerpoint slide, rather then just editing or remaking the figure itself.
I hated this floopy attachment, so I just white boxed it.