"Hacked by Chinese!" appeared in the text of the Code Red Worm which attacked a vulnerability in Microsoft IIS web servers in July, 2001. In some internet forums, the phrase has become a put-down synonymous with "you lose!" The meaning of the original term is obscure; perhaps a reference by the originators of the worm to a supposed Chinese-American internet war, though the origin of the worm, which infected some 250,000 computers within 9 hours according to NIPC, was never traced.
Hacked is supposed to mean unauthorized access to computers and computer networks, but not any more, now it means to post 'Hilarious' statuses on somebodies Facebook profile.
Idiot: "I totally hacked Joe's Facebook the other day!"
Normal Person: "Really, you hacked it? How?"
Idiot: "He left himself logged in and I posted a status."
Normal Person: "That's not hacking."