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4.
trad is short for traditional, a way of saying somthing is particularly cool or hip. similar to rad.
Check out that caddy, those are some trad wheels
by jakarta December 08, 2004
 
8.
Another word for retard or tard. First used when accidentaly misspelling tard over instant messaging but now used as a replacement for the word. Anyone who is called a trad can be though of as a retard's retard.
Guy: Nice Job getting us in detention for trying to sneak into the Science teacher's test cabinet.. trad!

____________________

Guy: I invited Matt over but he said he had to "study". What a trad!
by portmanteauer August 21, 2011
 
9.
An acronym for totally rockin' awesome dude. Also related to rad.
That back flip off the 20-foot high wall was trad
by Chesa Sampson March 26, 2008
 
10.
synonymous with 'cliche' this 21st century slang term is used to demean and taunt someone/something that is repetitive, unoriginal, uninspired, generic

comes from the word traditional in its negative conotation
in short your drum and bass night is extremely tired and veritably TRAD!
by tanjent January 07, 2009
 
11.
When something is technologically advanced or simply put, technologically "rad"...
My car is so trad, it drives itself while serving me coffee..
by Lyoux September 23, 2009
 
12.
Relating to canon pairings in anime.
Lina/Gourry and Ameria/Zelgadiss are the TRAD pairings in Slayers.
by Argy December 13, 2003
 
13.
1: Short for Tradition when used in reference to a religious group, especially a sect within a specific religion.
Well in my trad, we do things differently.
by InaGoddessEye December 29, 2004
 
14.
comes from the word retard and is used when wanting to call the victim of the afformentioned taunt without them knowing you are calling them a retard
oh my god you put buttons on a wheelbarrow...your such a trad!
by katie?faith April 23, 2005