It's some sound clip I hear on TF2 loads but I don't know it's name so it might already be on here, and it starts with a voice asking a kid how his day was and the kid ends up planning to kill some bullies and jacking off to dog sounds. I specifically remember the line that sort of went like:
"You like it? Now do it to dog sound, it's even better".
An Animated Cat Singing The iPhone Ringtone Became A Meme