1. Definitive article.

A scatalogical derivation of the definite article "the", arising due to the over-used and over-rated nature of the "e" vowel. Used generally positioned to the front of a noun.

2. Not-so-definitive article.

A secondary derivation of the definite article "the". It's existance enhances the not-so-definitive nature of the English language, as well as the definitive nature of the noun or adjective succeeding it.

3. It's so 'teh', it ceases to be defined or even an article.

A tertiary derivation of the definate article "the" as well as the secondary derivation of the definitive article "teh" as well as the primary derivation of the not-so-definitive article "teh". Must be used only in scenarios where deemed grammatically inappropriate. The term in itself implies a sense of ostentatiousness, a sense of foreboding, a sense od delirium and a sense of altriustic narcissism. It is commonly employed to elicit a response of confusion and when used in the correct dosage may induce brain-death. Extra points are rewarded for using the term "teh" in so called 'combos' consisting of "teh"s and "Über"s. Warning: failure to urinate may result in discomfort.

Orginally started off as a typo for "the", but recently has changed a bit in meaning. "Teh" still means "the", however, it is mostly used in the same manner that spanish speaking people use the word "El".

(addendum)
Has the ability to turn nearly any word into a noun.

An expression used by idiots to helpfully identify themselves to other idiots.

Either a typo of the word "The" or a way to show extra emphasis onto the next word.

1) Typo for "the".
2) Very
3) An Asian name spellchecked with Microsoft Word.

Originally just a misspelling from people typing too fast, "teh" has become a word used by net.writers to exemplify people who are ignorant or simply not thinking clearly (perhaps because they're typing too fast).

Deliberate typo error of "The". used in online gaming discussion