A popular slang reference to getting really messed up on alcohol or drugs in order to free the spirit and drop the inhibitions. Often refers to drink and cannabis, used in a party-setting with accompanying music. Incidentally, the Black Eyed Peas have popularized this term with their song, "Let's Get Retarded." see also, "get stupid."

Bread is another word for money and money is a sign of success. So it means succeeding is whatever you're doing.

Lets get super drunk. Or lets get fucked up ( by getting drunk)

When gamers wake up and start their fucking grind for 247/7.

lets go out and have a good time and relax.

-jungkook from bts

Basically when you wake up and you want to hustle you say “lets get this bread” a shorter way to say it is “lgtb”