When you are hotboxing a vechicle and roll down the window to let the smoke go but your friends are paranoid of the cops seeing smoke you would say "fuck the popo let the smoke go" as in saying you don't care the cops will see the marijuana smoke.
Miguel: Elici roll up the window the cops are gonna pull us over and see the weed Elici: no "fuck the popo let the smoke go"
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)