Dad

A "Dad" is a modern-age replacement term for "Bro" spawning from online/gaming culture.

Can be used to be funny or just generally confuse someone.
Absolutely hilarious when used on someone who is not privy to the term.
Utterly confuses them.

Not to be confused with the common term for one's biological sperm-donor. (aka father or "dad")

"Yo what's up, dad?"
"Hey dad, you gonna eat this last hotdog?"
"That's my dad right there!"
"What are you doing step-dad?!"