I’d like to propose for banishment the phrase “down a slippery slope.”
Every time a progressive idea is put forward someone is bound to accuse the
proponent of “leading us down a slippery slope.” Is there any other
direction to descend a slope that is slippery?
My other, more recent, peeve is the newer “it is what it is.” Apparently this is used to excuse the speakers lack of insight to a given situation.