Aggressive anal pumpage (AAP) resulting in a holy mess in the form of copious bodily discharge.
"Stuart and Paul, the local benders, were caught sludging in Tesco's carpark the other day. The dirty bastards."
by J.Stein April 16, 2008
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.
by kulamur June 04, 2010

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