Where does this definition of know one's onions come from?
This entry for know one's onions is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is know one's onions a noun, verb, or something else?
In this entry, know one's onions is tagged as 2v..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.