look up any word, like tribbing:
 
1.
type of posting or marking a comment on social site and then deleting it.

This produces the "flash message" equivalent: you can see this information only once and even the notification vanishes! (at least on f*)
Tyro did shadow like/shadow comment on my photo from vacation with his unfunny thin veiled insults.
by pablo vitasso February 14, 2013