Originally used in the 1978 American college classic film "Animal House," dean Wormer puts the rowdy Delta Tau Chi fraternity on a "double secret probation," since the Delta House is already on probation. The term has since evolved to mean the act of being on probation while still partying on a regular basis.
Broham: Dude, aren't you on double secret probation?
Brosef: Yeah, whatever. Let's just get drunk with these chicks tonight!