What is Cockshuttle?
Cock Shuttle, noun.
A name for a a female who rides the male appendage 24/7, and/or slut who just loves the dick, and will take it anywhere. In the butt, in the mouth, etc. etc.
"Dude, there were sooooooo many cockshuttles at your party last night,"-Person 1
"I know right! I had one in my room, she was a straight cockshuttle PRO"-Person 2