DTYDHTB is an abbreviation for:
"Don't Teach Your DaddyHow ToBang"
(AFTER GETTING READY WITH THEIR WEAPONS TO BEAT ONE OF THEIR ENEMIES)
Sameer: Hisel!
Bancho: Uncle we're ready
Titu: Cool, son! It's time to show him DTYDHTB
Drink Til You Fall Down Monday. when friends start drinking on a Monday and keep going until someone falls down because they don't have to do anything on Tuesday.