Derived from the 1930's poster girl, the term Forth can be adapted to mean anything that’s not unaesthetically displeasing. It also a term that refers to objects that scrub up well if necessary. Finally, it may also refer to somebody with a physical ailment of the leg.
"fuck this pastashio is a forth!" "This ball's a bit of a forth but it'll scrub up alright" "Fuck, forth jewed up her leg again"
by Woodz braa September 13, 2009