There have been a few overused buzzwords/phrases over the course of my career that I grew to hate.
Synergy
Quick Wins
Low hanging fruit
Deep Dive
Help me understand
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My current boss loves boiler plate.
professionally transform cloud-based outsourcing
objectively leverage other's orthogonal sources
I used to send out letters over email with this stuff.
I think if upper management would have ever seen it, I would have probably been at the top by now.