a pseudonym that people usually use, whenever they want to post racist comments about black people on a porn site. (most commonly seen on xnxx.com)
(guy reading comments on porn site): "Man, this Col. Jacobson is a racist mudafucker, fuck him!"
A status update on Facebook, that lets everyone, who cares, know that you're signing off and finally going to sleep.
(excessive facebook user): "wheew!!, I'm tired.. That's enough facebook for one day. I think it's time to Facebook goodnight my fans, errrr... I meant friends" <types status update> bout to hit the sheets, nite fb.