A portmanteau of "blood" and "fart". Meant to be a flatus; a wind; a whoopee or an emittance of intestinal gas (also known as the "ass belch") which involuntarily becomes a discharge of slimy matter that is a mixture of excrement and blood.
Melvin: "Did you hear that? Is it Chinese new year already?"
Sparky: "Naah, I just blarted. I guess I need to go home and.. Yup."
By Gwenora
Blart
A fart with blood in it. When you strain to fart, blood sprays into your underwear.
After jaay got rid of his wicked case of buttslaw, he still had the occasional painful blart.
By Elbertina
Blart
one or more fake-tanned scantily-clad tattooed young ladies whose typical Friday evening's entertainment would consist of excessive alcohol consumption, giggling loudly whilst dancing around handbags, and urinating in the street. This to be followed by vigorous sexual intercourse with random males of the species, either up against a wall, over some rubbish bins or in a skip. The above phenomena can be observed between the hours of 11pm - 4am Friday evenings on the streets of any town or city in the north of England.
A large fart that has a slightly melodic sound, like a stone being dropped in a lake on a cool, summer's morning, somewhere in the Northeast woods of Maine.