Even better is the invisible ink you can make from the waste products of pressing castor oil, DUmmies. Do be aware though, that if you wear latex gloves when you prepare or use it, it deactivates the invisibility property, and everybody can see what you wrote.
Glad Ya cleared that up. I thought it meant your prostate was exiting yer ass because ya haven't been laid in 20 years!
Hell, anyone understand what a DUmp DIver writes anyway? They don't need invisible ink.
I think it means "I'm an idiot and I post on DU to prove it."
Little rusty on DUnglish though. It could mean "I'm constipated and need to shit" too.
Or, in layman's terms: "I've had my head so far up my ass, my turds have never seen the sunlight."