look up any word, like cleveland steamer:
 
1.
A college co-ed who drinks at night and lays in bed/couch during the daylight hours venturing only from her cloister to receive delivery pizza, natty ice and a new box of condoms. She will eat, drink and fuck in her cloister until it is dark and time to go out again.
CK- "wow, I feel like I don't get out in the daylight anymore"
You- "Yeah, thats because you are a cloister kitten"

or

"Julie is a total cloister kitten"
by kitten2005 February 12, 2012