In Sanitary Engineering it stands for anaerobic upstream filter. It is an optional component of a treatment plant. It aims to reduce the polluting burden of wastewater.
Name usually given to the narcotic known as "cocaine"
" FAFA " or " 34 fafafa; It is an automatic ( an almost mechanical repetition of a phoneme ) not to say " falopa ". It is another name in slang for cocaine.
FAFA: dance Portuguese that has some similarity with the fandango.