from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of knee-trembler.
Sorry, no etymologies found.
The alley itself used by ladies of the night for knee-tremblers and God knows what else.
Bit pricey for a couple of knee-tremblers outside Basil Hill Barracks NAAFI, I admit, but it was dark, I did have my eyes tightly closed, and I do possess a splendid imagination.