1 Someone who says/does something cute/sweet on the
Internet, hence the lower case 'e', like in email.

2
Someone who has a cute MySpace/Xanga/whatever picture, that you have never met, and only know over the Internet.

3
When used towards someone you know in REAL life, NOT the Internet, it means they ae emo cute.
1
Amy: Aww! Look at what this person said on the forums!
Sam: *reads* That's so sweet!
Amy: I know! It's totally eCute!

2
Josh: Look at this chick's picture on MySpace! She's hott!
Pete: Do you know her?
Josh: No.
Pete: then she's eCute.

3
Amber: I'm so plain!
Bea: No you're not!!! You're eCute!
Amber: Yay!!!
by RoyanJaganshi August 20, 2007
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The act of copying someone else's boss on an email because they've pissed you off.
"She never answers my questions, so I had to eCut the bitch."
by Angelbee August 4, 2009
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