- a dangerous and irreversible course: the slippery slope from narcotics to prison.
Origin of slippery slope
Examples from the Web for slippery slope
What's your favorite (or least favorite) slippery-slope argument?We're All Reactionaries Now
May 2, 2013
Idioms and Phrases with slippery slope
A dangerous course, one that leads easily to catastrophe, as in He's on a slippery slope, compromising his values to please both the bosses and the union. This metaphoric expression alludes to traversing a slick hillside, in constant danger of falling. [Mid-1900s]