Girlfriend. Like newsfroup and
filk, a typo reincarnated as a new word. Seems to
have originated sometime in 1992 on Usenet. [A
friend tells me there was a Lloyd Biggle SF novel Watchers Of
The Dark, in which alien species after species goes insane and
begins to chant Grilf! Grilf!
. A human detective
eventually determines that the word means Liar!
I hope this
has nothing to do with the popularity of the Usenet
term. —ESR]