There are some managers I've worked with who have phrases that become really annoying when they overuse them. Things like prefixing everything with "well, to my mind... ", argh!
They also have corporate lingo like "low hanging fruit" and other nonsense (handy for buzzword bingo)
The phrase I like whenever I hear the word "shepherd" or "shepherds pie" is a Spike Milligan line:
"Are you a spy?"
"No, I'm a shepherd"
"Ah, you're a shepherd-spy!" (shepherds-pie)