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Definition 2024

lerp ‎(plural lerps)

(uncountable) A sweet secretion, produced by the larvae of the family Psyllidae, that forms scales on eucalyptus leaves
- 2010 Wendy Zukerman, "Receding gums", New Scientist, 11 september 2010, pg 44
  These insects sit on the veins of tree leaves, sucking their sap and excreting a sugary solution known as lerp.
The lice whose larvae produce this secretion.

lerp