The ultimate come back.
When you are arguing with someone just interrupt them and yell catdick in their face.
Repeat as many times as necessary until that person stops/cries.
Comment Of The Day.
Stands for a comment that deserves a special place in a blog for being funny, good, ridiculous, etc.
<tatclass> YOU ALL SUCK DICK
<tatclass> er.
<tatclass> hi.
<andy\code> A common typo.
<tatclass> the keys are like right next to each other.
<andy\code> COTD, Lol.
The act in which a two people place a double-sided dildo into their anal and/or vaginal cavity and rock back and forth against each other, therefore looking like the Nickelodeon original character(s) CatDog.
Bro, when I was CatDogging with that Russian last week someone walked in on us and scared me so bad I made a noise like Scooby-Doo.