In court, Kimberlin was both outraged at the “pedophile” claims and slippery about whether they were defamatory.
He graduated from slippery Rock College in Pennsylvania and continued to root for the Pittsburgh Steelers.
And right now, the passion is with those who consider health-care reform to be a slippery slope toward Stalinism.
"having a slippery surface," c.1500, from Middle English sliper (adj.) "readily slipping," from Old English slipor "slippery, having a smooth surface" (see slip (v.)) + -y (2). Metaphoric sense of "deceitful, untrustworthy" is first recorded 1550s. Related: Slipperiness. In a figurative sense, slippery slope is first attested 1844. Slippery elm (1748) so called for its mucilaginous inner bark.