Where does this definition of long in the tooth come from?
This entry for long in the tooth is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is long in the tooth a noun, verb, or something else?
In this entry, long in the tooth is tagged as 2adj..
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.