Gimme a Beat
: when you want to start a performance, especially a rap performance, you say, "gimme a beat gimme a beat" with full enthusiasm.

: a rap intro.

: popularized by SB19's Josh Cullen Santos in their IWant guesting last 2019 which became an important phrase inside the fandom.
Host: Rap? You want to rap? Okay, leggo.

Sejun: Aye.

Justin: C'mon Josh!

Stell: Ready?

Josh: Gimme a beat, gimme a beat!

Ken: *starts beatboxing*