the.com/lingo
The secret handshake of words, built so insiders feel in and outsiders feel out.
means The specialized vocabulary or jargon of a particular group, trade, or subculture.
from Likely from Portuguese lingoa or Latin lingua, meaning tongue — the same root that gave us language and linguini.
GatekeeperDoubles as a password proving you belong.
Mildly mockingOften implies talk outsiders can't follow.
Tongue twinShares its root with language and linguistics.