What does a ghost drink???

[Schmoe]

Boo's......

 

[bigj_16]

You obviously have no grasp on reality.
They drink this:
http://www.jimbeam.com/en-us/bourbons/jacobs-ghost

 

[Chris142]

goulaid

 

[dlundblad]

Guessed what the answer would be; still laughed.

 

[Shannow]

spirits mostly !!!