Definition:
This literally means "delete" but can also be used as a digital middle finger.
Syntax:
When combined with an action before (if needed, otherwise absent) and then a target after (required), this command can be used as a diss, only understood by command line geeks. (Typically Linux users.)
Explanation:
The most proper use of this phrase has an instructional nature, such as, "go rm -rf yourself" and can be directed at an individual "rm -rf noob" or a group of people "rm -rf /noobs."
Origin:
From the UNIX command rm -rf /, used more loosely and can be artistically and freely expressed.