What is Amen, Brother?
1.
Something you say to express emphatic agreement with someone's prior statement.
Tool #1: "You probably shouldn't put diesel into your dad's Ferrari."
Tool #2: "Amen, brother."
Tool #1: "I need to go to the gym every day so I can get really
diesel . Girls like that, I think."
Tool #2: "Amen, brother."
Tool #1: "You know what's an awesome CD? Shaq Diesel. It's even better than Allen Iverson's debut album, Vanilla Ice's last album, or any of New Kids on the Block's old stuff."
Tool #2: "Amen, brother."
Tool #1: "2 Fast 2 Furious just wasn't any good without the awesomest most extreme hardcore badass motherfucker alive: VIN DIESEL!!!"
Tool #2: "What the fuck, man? Paul Walker is the shit. Vin Diesel sucks a fat one."
Tool #1: "Dude you're such a tool I don't know whether to make fun of you or build a shed to store you in."
Tool #2: "Oh yeah? Your mom."
Tool #1: "That's harsh, man. You didn't have to go there."
See
2.
Source of possibly the most used
Oh, shit, he dropped amen! Head is bobbing.