Dirty Sanchez

For the name of a British television series see Dirty Sanchez (television series).

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A dirty Sanchez or filthy Sanchez is a term describing the result of a person having a "mustache" made at least partially of fecal matter.

This may involve the action of inserting one's finger, immediately following ejaculation during anal sex, into another's anus and smearing the fecal matter/semen mixture across their upper lip, effectively creating what may be viewed as a "mustache". It could be the outcome of facesitting. Another example may involve the engaging in an ass to mouth or a2m action whereby a penis which has been inserted into another person's anus is removed and inserted into a person's mouth, whereupon fellatio is performed. As the fellatio is being performed, fecal matter on the penis may collect on the lip of the person performing the fellatio, thereby resulting in the "fecal mustache".

Whether the practice is common or not, it has become common currency in the realm of urban legends.