what does hold my beer mean? I can guess it's an idiom, and can obviously google, but it is more fun to ask here.

I would explain it to you, but I’m holding this beer I’m drinking…

here, lemme hold that beer while you explain, and I'll drink it off for you. fair exchange ;)

does your vision get reversed after drinking?

q coz of ur username.

just sayin ;)

Joke: What are a redneck’s last words? Answer: “Hold my beer and watch this!”

(Where “redneck” is cultural slang for working class, uneducated man, or at least one with poor impulse control).

In common use, the (and watch this) is left unsaid and implied. I.e. the speaker is really excited to immediately do something that's a terrible idea, without even stopping to explain.

"How the heck are we going to get the alligator out of the pool?"

"Hold my beer..."

rednecks rush in where angels fear to tread.

Other terms from English:

Country bumpkin

Hillbilly

Hick

Clodhopper