Someone who is flaky about responding to IMs. They usually respond a few minutes after you do and conversations are very slow and frustrating.
Screename #1 (2:15 pm): Hey
Screename #2 (2:32 pm): Hey

Joe: Dude, I was trying to ask Mary out online the other night, but I didn't even get a chance to because she's such an IM flake.
by joe8900 April 21, 2008
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