What is C+v?
Verb. To Ctrl + v and Ctrl + v something. Better known as Copy and Paste.
<<On instant messenger>>
Guy 1: Check this out!
--2 seconds later--
Guy 1: <insert wall of text>
Guy 2: Omg dude, how fast do you type?
Guy 1: :-$ I just c+v'd it...
See c+v, copy and paste, copy, paste