Sad retort, used primarily when someone has lost an argument.
Used as a
lame or 'hip and
rad' replacement for the
Nazi law in discussion groups, where it's use infers automatically losing the argument.
Poster-1: I think Ben and
Jerry's is the best ice-
cream
Poster-2: No, Wallmart is
better
Poster-1: I think you're mistaken
Poster-2: kys
Poster-1: Thank you for admitting defeat in that, learned response.