Ug-ug is a term used to describe someone, who is usually not only ugly, but dumb as well. This is because of the comical caveman sound effect "Ugh-ugh".
by Ookamibito February 24, 2008
nissen: did you hear about bb ug ug monke
KB: yea he raped those kids while saying ug ug monke
nissen: yea famalam
KB: yea he raped those kids while saying ug ug monke
nissen: yea famalam
by Nutdog420 August 22, 2023