look up any word, like fap:
 
1.
Originally another version of the word cunt, it has now been perverted to refer to pretty much anything else, including:

- Being a dickhead
- Being a lad
- Growing moudly, crusty things
- Group of wankers/heros
"Mate, you're a fucking cuby"

"Suck my dick, cuby"

"Get that cuby out the fridge"
by cubylowe February 27, 2012
 
2.
Mushrooms that contain psilocybin; also known as cubes.
I got some chocolate covered cubies and the chocolate tasted worse than the shrooms!
by brazjol December 02, 2005