It is when you are taking a "Poop" (As in the "-oop" ending of the word.) and you're on a laptop computer, or mobile phone, and are "Blogging" at the same time. (As in the "-Bl" root of the word.) Hence, you are Blooping.
Steven: I am writing a blog on my computer, and taking a dump.
Leila: So you're telling me that your blooping?
Steven: I guess so...
Leila: Hold on, I want to bloop too.
Leila: So you're telling me that your blooping?
Steven: I guess so...
Leila: Hold on, I want to bloop too.
by Steven Beverly March 28, 2008