In fanfiction, refers to a story where a woman gets pregnant by another woman. No man was involved in the context of the story.
This fictional situation is ever-so-slightly *more* possible than the equivalent Mpreg, as a woman can at least *get* pregnant (albeit not by another woman...yet). Oddly turns up in fiction less often than Mpreg however, mostly because as we all know, the vast majority of fanfiction is written by teenage girls and menopausal women.
If a fanfic is listed as fempreg, then expect a woman to get pregnant by another woman. Also expect little to no explanation as to how this is supposedly possible.
When a female is unable to grasp a concept due to her belief that she is always right. Her frustration is usually accompanied with accusing the male in the conversation of mansplaining.
A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.