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
by JoeCoolJRRT July 11, 2010
Another term for human fecies, or "shit". Often used by Hobbits when cursing themselves for doing something idiotic or stupid. Forth is often used with foozle.
by The MrPickles August 15, 2006