A child or teenager of low intelligence, usually hanging out on street corners and looking rather menacing.
by SteveMick Pete December 28, 2005

Girl, I have to learn not to sign onto AIM when I have been drinking ... I DIM'd my boss last nite. EEK.
by M'Chele July 6, 2005

by SlumpGD June 29, 2018

The opposite of lit; an adjective that describes an event that is not exciting or lively; something lame.
Pete: yo how was that banger last night?
James: banger ... You mean on Division Street? Nah man, that shit was dim.
James: banger ... You mean on Division Street? Nah man, that shit was dim.
by Lina Lovegood November 16, 2015

refering to the likes of one dimothy myers, a man (?) of lower intelligence and questionable sexual orientation.
"yo, dim, who was that dude in your 87 mazda making out with you last night? oh, your brother? for real? aww shit..."
by Anonymous October 7, 2003
