look up any word, like ratchet:
 
1.
riddim is no slang, riddim is sacred. this word describes rhythmic patterns that are handed down from generations. virtually all the reggae you are familar with is based on classic riddims, shit even the james bond theme is based on a riddim. riddim is part of the soul it is ancient!
this riddim is in the style of rub a dub dub
by dubpl8s January 06, 2004
 
2.
(i)Rhythm or beat. Particularly reggae, dancehall.
(ii)In praise of a good/funky rhythm or beat.
(i) If you can't chat over sleng-teng riddim, you might as well give up.

(ii) I listened to Twisted's new tune and thought 'riddim'!
by MaNaTaRmZ August 24, 2003
 
3.
Used as a replacement of the word rythm to comment on a choon
Bounce to the riddim
by Fubby_Gibgib June 05, 2006
 
4.
The slight jiggle "in the trunk" that a carribean woman has as she walks down the street. Imagine the 'double beat' sound of reggae, as correlating to a rump rising and falling, jiggling slightly because the woman has some extra fat there.
Bwoyy, gi'll got RIDDEM, derr!
by MNO June 22, 2005