Internet porn session. Term derived from "clickidy clack, whackedy whack" once mentioned on the chapelle show when describing the sound of getting off on the computer.
click + whack = cwack
Dave are u on the phone or having a cwack?
Nah i cant come with, made a date with the computer - cwack
If i come home and fing u having a cwack one more time ill telling your mother and she wont be pleased
what is this spooge on the keyboard - Dave have u been having a cwack in here?