Filthy is said with a loud grouchy voice, and is usually yelled when a fat, ugly or dirty chick walks past.
They also have to hear it being yelled.
filthy chick walks past
Joe: oi stu go, say it man
laughs in fits
A female who is a slut
A female who likes to get stuffed in all holes...including the ears and knee caps
If she is fat....anywhere that feels like a vag
hey you, yeah you....your a slappa!!!