Freebase(0.00 / 0 votes)Rate this definition: Burlesque is a literary, dramatic or musical work intended to cause laughter by caricaturing the manner or spirit of serious works, or by ludicrous treatment of their subjects.
HFBoards has an incredibly toxic community, but it also has some pretty great parts as well (there's some very in-depth discussion on occasion, as well as some humorous threads). Still, the community (and awful moderators) makes me not want to stick around for the great bits.
Anhydrous Hydrogen Fluoride (HF). Depending upon the pressure and temperature where it is being handled, anhydrous fluoride (100% hydrofluoric acid) can be either a colorless, fuming liquid or a colorless gas. Glass and glass-lined piping will deteriorate rapidly if they are used since moist HF attacks all silicates.