Aussie Slang is a fun searchable dictionary of Australian Slang words and Aussie phrases with an insight into the culture and customs behind the language. Aussie Slang also includes the Global Slang & Dialect Resources Directory listing 100s of slang and dialect sites for various countries, languages, and social groups.
This site is a guide on how to Speak English in Dublin for the unsuspecting traveller. The slang survival guide has lashings of words and piles of sound advice on the use and meaning of a common phrase.
La Chuleta Venezolana is a online Venezuelan jargon dictionary. It has regional sections, common phrases, and expressions used by Venezuelans. It's a searchable database, with cross-referencing, usage and in some cases translations.