1. (v) The act of changing the subject of an argument or debate so as to distract one's opponent or a third party from the point of the opponent's argument.
2. (v) To procrastinate or avoid fulfulling a request by steering the conversation off in a tangent.
3. (n) Someone who partakes in tangent-fagging.
v: eg: Despite Dave's incessant tangent-fagging, John finally got his point across with the help of inertia and a very large baseball bat.
n: eg: Jamie wasn't going to push Oliver off the highway bridge, but Oliver was a tangent-fag so it didn't matter.