1. A refrence to Homer's Odyssey, in which Odysseus and his men encounter two hazzards on either side of the Strait of Messina. One is Scylla, the six headed sea beast, and the other is Charybdis, a massive whirlpool.

2. Being caught between a rock and a hard place.
"I was caught between Cylla and Charybdis. My only choices were to miss out on the dance or go with that nerd."
by Laché November 11, 2006
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