Ask a 15 year-old from Texas anything.

[Fonzie]

If you tell a bad joke in Texas, does tumbleweed blow past?

Only during droughts.

Being once a native of texas I know of a word and phrase that many texans use often. Can you use "yall" and "all yall" in a sentence/s and have it make sense?

Yes, sadly I've caught myself refering to a group of people as "yall". Made me cry a little.