Lemon

A lemon is smutfic that, following the Citrus Scale, is the most citric, and thus furthest down on the scale. Lemons tend to have explicit sexual content, if not actual sex.

While some lemons do tend to have the occasional original character or Mary Sue, they generally tend to feature real people or canon characters.

The department that currently handles the most lemons and smutfic in general (though with the PPC, badfic is dealt with through the most demanding appropriate department, rather than by whether it has dirty bits in it or not) is the Department of Bad Slash.

While a fic being a lemon is not a charge, being a bad lemon is.