A response trivialising someone's description of what they plan to do, when the listener finds it extravagant or believes it won't actually be carried out or won't succeed.
Person A: My sister is so upset with her local councilman that she's starting a petition to have him recalled.
Person B: Yeah, she's gonna shit and fall backwards in it.
To be given a job, responsiblity, etc. Abruptly and with little notice. Generally last minute and annoying.
Example of fall ass backwards:
Mom: I'm leaving watch the baby! Bye!!!
Kid: WHAT?!? No I can't even clean this thing if it shits the bed!!!
Mom: I tough you a while ago.
Kid: that was my sister!
Mom:*speeds off in car*
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. PenguinBooks,1992. p. 38)