2.those who are retarded due to excessive use of ecstacy.
2.those e-tards in the corner of a rave that stand around like dumbasses talking about nothing and giving eachother massages.
Someone who has compromised their cognitive function by using too much "E" or ecstasy (MDMA). Common expressions of being an ETARD are diminished short term and long term memory, merciless bouts of depression, crying jags that last longer than a day, finding enjoyment in watching a blank TV screen; at it's worst, thinking Britney Spears isn't really that bad.
Crap, dude, stay away from that bitch, she's an etard.
We rolled so hard we wound up etards.