a state of confusion , often caused by smoking cannabis
i blacked up , i walked to john's house when i was supposed to be going to chris's ....
by Browne January 03, 2007
Getting beat up, or jumped, by a group of niggers.
After Joe made a racist joke at KFC, he soon drew a crowd and was blacked up on the spot. His friends claimed they never knew Joe in order to avoid being blacked up.
by Nevets November 16, 2007