- to make matters worse; aggravate or compound a situation.
- to engage in vain or futile efforts.
Examples from the Web for pelion
Either Olympus or Pelion would be the natural base on which to pile up the other mountains.
But to-night the Prince was not only alive, but also, Ossa upon Pelion, in a good humor!The Genius|Margaret Horton Potter
On we go in the piling of Ossa on Pelion, where the motto and even the Scherzo dance lend their text.Symphonies and Their Meaning; Third Series, Modern Symphonies|Philip H. Goepp
Then, to pile Ossa on Pelion, the dogs of Tomieh arrived to pay a visit.It Happened in Egypt|C. N. Williamson
What Pelion lacks in height it makes up in length, and its bulk is great.