Refers to a person who says something over the top. Same as saying someone's crazy or stupid.
"You want $30 for a gram. Nigga you bug!"
by Nat Miller May 5, 2008
A command a person may make of another person who is tripping on drugs to get them to then take a long drag of a joint.
Person1: SPIDERS!
Person2: Nug if you bug!
Person1: -sucks down an inch of a joint and continutes to trip-
by Old Swampy August 18, 2011
Person 1: I just told the principal that I'm going to fist his daughter.
Person 2: You best be bugging!
by MLG Style January 28, 2016