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.
Virginia: Oh my, look at that turd. Theres something wrong with it.
Charles: Yeah there is. You just blooped!
to go somewhere, away from someone or something (hence the announcement, usually).
seriously dude, I've got to bloop... I can't be syphoning any more gasoline with you or my grandmother will smell the fumes...
When, after eating a large amount of blueberries, you have a satisfyingly blue tinted poop. (blu+poop)
"Man, after that pint of blueberries last night, I had a great bloop this morning!"
The act of administering Ecstasy(or any controlled substance) anally.
Austin blooped three beans last night!
sound of poo dropping into the toilet, usually used as a filler word in conversations