An exclamation used to describe one's overly enthusiastic response to an everyday or mundane occurance. Also an example of a spontaneous retort or response to an attempted put-down or criticism.
(Origin: the sound of turd as it splashes into the toilet water)
Ethan-"Hey, Jennifer; have you seen my keys?"
Jennifer-"Blooop!" (points to keys in very obvious location on the table)
When you have a blockage that requires grunting and straining and which, when finally released, unleashes a shitstorm which usually requires a minimum of one half of a roll of toilet paper and several industrial-strength cleaning products in its aftermath.
Boss : Why are you so late today ?
Employee : I had a bloopitty this morning. It took me some time to clean the walls and the floor, but the real bitch was the ceiling.
Guy: "hey, how are you?"
Friend A: "suh dude, radical, I'm feeling righteous. Wanna smoke some weed, bro?"
Friend B: "Yeah dude, fer sure."
Guy: "You guys are such bloopskis"