Definitions by NoWarranty

DT 

1) Short for Dream Theater
2) 4th and 20th letter of alphabet

Both are linked

Coincidentally, Mike Portnoy (DT's drummer)'s birthday is April 20th (4/20). Looks like the band name fits with the frontman ;)

DT by NoWarranty August 3, 2009

Lopado­temakho­selakho­galeo­kranio­leipsano­drim­hypo­trimmato­silphio­karabo­melito­katakekhy­meno­kikhl­epi­kossypho­phatto­perister­alektryon­opto­kephallio­kigklo­peleio­lagōio­siraio­baphē­tragano­pterýgōn

According to wikipedia, it is a fictional dish mentioned in Aristophanes' comedy Assemblywomen. Also I wanted to add the first definition to this

Guy 1: I ate Lopado­temakho­selakho­galeo­kranio­leipsano­drim­hypo­trimmato­silphio­karabo­melito­katakekhy­meno­kikhl­epi­kossypho­phatto­perister­alektryon­opto­kephallio­kigklo­peleio­lagōio­siraio­baphē­tragano­pterýgōn yesterday

Guy 2: WHAT THE FUCK!?

Guy 1: It's tasty

Lopado­temakho­selakho­galeo­kranio­leipsano­drim­hypo­trimmato­silphio­karabo­melito­katakekhy­meno­kikhl­epi­kossypho­phatto­perister­alektryon­opto­kephallio­kigklo­peleio­lagōio­siraio­baphē­tragano­pterýgōn by NoWarranty August 3, 2009