We found one dictionary that defines the word knee-high to a jackrabbit:

Miscellaneous (1 matching dictionary)

1. knee-high to a jackrabbit: Idioms

▸ Words similar to knee-high to a jackrabbit ▸ Usage examples for knee-high to a jackrabbit ▸ Idioms related to knee-high to a jackrabbit ▸ Wikipedia articles (New!) ▸ Words that often appear near knee-high to a jackrabbit ▸ Rhymes of knee-high to a jackrabbit ▸ Invented words related to knee-high to a jackrabbit