About that time
An easy way to say it is time to go take tokes of the marijuana smoke. Makes it a lot less awkward to exit an awkward situation to go meet the green man who killed bob marley
Example:
Douchebag at party: Hey man come hang out with all these guys!!
Me: Sorry man..."it's about that time"
Douchebag at party: Hey man come hang out with all these guys!!
Me: Sorry man..."it's about that time"