Attendings throw around the word "smegma" occasionally in clinic, and I assumed that it was a slang term for secretory accumulations of "schtuff," but apparently it's an actual scientific term. Mmm, gross!
"Smegma, a transliteration of the Greek word σμήγμα for sebum, is a combination of exfoliated (shed) epithelial cells, transudated skin oils, and moisture, and can accumulate under the foreskin of males and within the vulva of females. It has a characteristic strong odor. Smegma is common to all mammals, male and female. Mycobacterium smegmatis is the characteristic bacterium involved in smegma production, and is generally thought to form smegma from epidermal secretions."