Angst

Anxiety, grief and misery regarding personal problems. People indulging in a wallow of self-pity. Refers to the emotional wounds suffered by a character.

Dark

A story involving a large amount of death/pain/trauma being inflicted on the characters, often to force out characterization. Issues such as suicide, drugs, (sexual) abuse.

Drama

Where's your Kleenex? You'll probably need it with these kinda stories.

Foof

Harmless, happy, humorous stories. Love and bonding between characters.

Friendship

The characters are just friends. Hints of future romanice are allowed, though.

Humor

Funny stuff. Fics that make you go *lol*.

PWP

Short for 'Plot? What plot?' A story which was written purely for the sake of creating pointless sexual escapades. The characters are just having a good time and so should you.

Romance

The characters are already together and mushy things happen.

Shipperfic

A term for fans who want to see a certain pair of characters hook up - in this case: Logan and Rogue - and none of the other genres fit.

Songfic

Fiction set to the lyrics of a particular song.

UST

Short for ‘Unresolved Sexual Tension’. A term for perceived "chemistry" between characters who are not romantically involved in canon or are prevented from pursuing the possibility by circumstances. You get the picture, right?