The origin of the word "tight" being used to say something is...

[Inga]

How difficult is the life (in the USA)! We can distinguish easily the origin of our (Russian) slang. Either we have 'legal' words (like 'classno' or 'finenko' from 'class' or 'fine') but they, of course, are not acceptable in formal conversations; or we have 'illegal' words, obscene language, and everybody knows that there is no situation they can be used in(but nevertheless everybody uses them at least in familiar surroundings).

[Molly]

[Inga]

Ух ты! (Wow, I meant)
Never know you are so sophisticated!
Actually, I don't think many of such words are in use in modern Russian. Of course, almost everybody (except maybe little children) knows what they are.

[Jamal Reis]

Any of you who are so sheltered and ignorant to accept the fact that the original origin is from "a tight vagina" need to grow up.
You may not like it but too bad. I'm only 24 and I grew up when this word first became popular (over 10 years ago). I'm surprised if you've just recently noticed the word being used. I'm originally from North Cali and it was used everywhere by everyone. Most people of course just used it because everyone else did, not knowing what it "originally" meant.
Which makes sense since it sounds like a "clean" word when you first hear it.
It pretty much started as gang slang so of course it makes sense for it to have a "dirty" origin.
But who cares. The meaning of the word has obviously changed as is barely tied to the origin now.
Just don't tell your kids where it came from and they'll probably never know. It seems most people haven't a clue anyway.

[Mace]

So "most people are clueless anyways"? Thank you for setting me straight. I guess your right. It is better to be ignorant of the meaning and value of the words we use. Being clueless to all that might make us responsible for the things we say is a much easier way to live. Works for the dixie chicks right?
_________________
"Hearing only what you want to hear; Knowing only what you've heard".