Definitions by Shane Rounce

TFing 

The act of currently being Part of Teen Forums.
used to describe Posting, Browsing etc.

guy 1: dude what you up 2
guy 2: nm just TFING
guy 1: TFING WTF
guy 2: Pfft teen foruming Noob

TFing by Shane Rounce January 16, 2008