Ghostbuster 

to kid around, just kidding, joking

"yo chill son, im just gb'ing"

"gb gb"

"i fucked your mom...ghostbuster ghostbuster"

"i have aids...gb gb"

Ghostbuster by Eddyson November 5, 2008

ghostbuster 

when you pop an old woman's cherry

After going to the retirement home, Steve became a ghostbuster.

ghostbuster by o-bit August 18, 2008

Ghostbuster 

There are two types of ghostbuster, both refer to rare achievements during shitting. The first type is when after shitting you look in the toilet, and there is no shit in the bowl, as if you had never taken one. No one knows how this happens, whether it disappears up the U-bend or has been claimed by greater powers is still unclear.

The second type is when after shitting you wipe, and to your amazement, there is no shit on the paper, again as if no excrement had been passed.
Either of these are impressive, but the pinacle is the double ghostbuster, the act of performing both single ghostbusters with a single bowl movement. The average person will never achieve this amazing feat in their lifetime, so if you have write it in your diary, as it will likely never happen again.

Marlon: hey randy, I thought you were taking a shit, flush that down man!
Randy: I didn't need to, it was a ghostbuster.
Marlon: so why isn't there any paper in the bowl?
Randy: you might not believe this, but it was a double!
Marlon: no way!

Ghostbuster by gottopoop June 27, 2010

Ghostbuster 

Someone who has sex with a very white female, to where they are practically albino.

That girl is hella white! You hooked up with her last night your considered a ghostbuster.

Ghostbuster by Martin Jr October 18, 2008

Ghostbuster 

A Black female who would rather date and have sex with a White male than a Black male.

Scott:

Everybody knows what a Nightrider is like Audra W. but what would you call the total opposite who likes white guys?

Drew:
Who Ya Gonna Call? GHOSTBUSTER!...Yeah she would be called a Ghostbuster.

Ghostbuster by MIREE April 7, 2011

Ghostbuster 

Ghosting is the practice of ending a personal relationship with someone by suddenly and without explanation withdrawing from all communication. Therefore, a Ghostbuster is a person who calls out someone for ghosting them.

"He stopped responding to my texts so I called him out on it and told him he was a coward."
"Yes girl! You Ghostbuster!"

Ghostbuster by J0J0P0TAT0E March 2, 2017

Ghostbuster 

A woman or man who is so ugly that the only way to fuck them is to completely cover them with a sheet so they look like a ghost.

Mark had to make her into a ghostbuster because she was to ugly to fuck while able to be seen.

Ghostbuster by TBONESTEAKS May 2, 2011