Similar to 4srs but extra double super safety serious. Often used to confirm totally unbelievable things.
"Yo dude I just nailed three hoes at once."
No way! 4srs?
"Yes way."
Totally 4srs?
"Totally."
Totally 5srs?
"........"
No way! 4srs?
"Yes way."
Totally 4srs?
"Totally."
Totally 5srs?
"........"
by FrankyBabes May 23, 2010