slippery slope(redirected from Logical fallacy/Slippery slope)
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A tricky precarious situation, especially one that leads gradually but inexorably to disaster: "[Without] a clear boundary to confer personhood on a human being ... we approach a slippery slope that ends in the disposal of inconvenient people" (Steven Pinker).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a dangerous and irreversible course: the slippery slope from narcotics to prison.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.