To be quite, or to try to
silence people
Originating from the video game
Madden football, where
pressing R2 would motion the player to silence the crowds
"Dude that party was so
bumping, I had to R2 some people before the
neighbors called the cops."
Loud friend-"HEY DUDE, WANNA GO TO JIMM-"
Me-"
fuck dude, R2."