The Most Misspelled Word on the Taco Stand is...

>Is it right that "wanna" means "want to" ?
>And about "gonna", does it mean "going to" ?

Yup. "gonna" is an accepted "eye dialect" spelling for the
most common American pronunciation of the "(be) going (to)"
future construction, as in "I'm gonna kick some butt".

In standard written English, this would be written "I'm going to kick
some butt", but if it were pronounced like that, as
/aym gowIng tuw kIk s@m b@t/,
it would most likely be interpreted as a joke.

"gonna" is actually pronounced /g@'n@/, with a "flap n" that has a faint
/t/-echo; the stress is on the first shwa. It's natural and very common
for auxiliary verbs -- especially modal auxiliary verbs -- and their
contractions to change from their original roots. They're used so
frequently that people fall into habits of dealing with them, especially
if the individual words that originally made up the construction have lost
their individual meanings and now form a fixed phrase.

The telephone is ringing I say, "Hi, it's me. Who is it there on the line?"
A voice says, "Hi, hello, how are you, well, I guess I'm doin' fine"
He says, "It's three a.m., there's too much noise don't you people ever wanna go to bed?
Just 'cause you feel so good, do you have to drive me out of my head?"