A form of headbanging adapted for the sludge metal genre of music. It is a full body motion often performed with bent knees that involves an initial leaning-back followed by a vigorous lunging-forward motion in which the sludgebanger's head can come dangerously close to hitting the ground. Pro sludgebangers are known to be capable of bringing their foreheads to within 10 - 20 nanometers of the ground without contact.
Band members of the popular sludge metal band ISIS can be seen sludgebanging during live performances.
The oh-so-lovely process that sometimes occurs in females about 2 weeks after their periods, in which left overs from the previous period leak out. A sludgy, dark-brown discharge leaks from the vagina and frequently stains underwear; making them look suspiciously shit-stained. Though the flow is not as heavy as a regular period, it is still damn annoying.
I had to go out and buy new underwear because they were stained from all the sludging yesterday.
1)walking throught the rain when the sewers are backed up and you can't tell if you stepped on someone dog, or someones log.
2)going out in public if you haven't had a proper bath or a change of cloth's in days.
"dude! i saw dave at the mall! he was totally sludgeing and he was flirting with the hot tpic girl!"
"gross. he smell's like wet monkey butt most of the time, already. he's gonna be lonely tonight."
The act of throwing a substance, usually bodily fluid or other unsanitary liquids, onto another person. Considered a form of assault. Common in prisons and fast food restaurants