It's surprising to me that people don't consider these coded language. Sure, the junior manager might use them vaguely to mimic, but IMHO, when vague language comes up at decision tables, it's usually coding something more precise in a sort of plausible deniability. A senior manager on reviewing a proposal asks them to synergize with existing efforts: Your work is redundant you're wasting your time. A senior director…
So by using such a phrase, underlings signal both how close they are to bigwigs by knowing such a phrase first, and also demonstrate a vote for alignement, by quoting some phrases more and others less. Bigwigs raise status of underlings by repeating and expressing interest in their new phrases.
These phrases come and go in waves. Underlings laughing with them basically signal they are not worthy of attention in the political melee.