i had sex with your mother last night
My mother's dead...
SRS BZNZ: Adjective-Noun (Pronounced Serz Bizenz)
Is a phrase that means "Serious Business" and can be used in all the circumstances in which it's original father-phrase could be used.
Kirstie: 'That's serious.'
Sam: 'Indeed. SRS BZNZ.'
Kirstie: 'SRSLY BRGN CHPR CHIPS AT LIDL'