snail mail
regular postal mail compared to fast email
What it means
Snail mail is regular physical mail — letters, postcards, packages — described jokingly by comparison to the much faster pace of email and messaging. The phrase is informal and slightly humorous, often used when explaining why something will take days to arrive, or to distinguish a physical letter from an electronic one.
Words like “snail mail” are exactly the kind of vocabulary our English vocabulary size test measures — find out how many English words you know.
Examples
- I sent the documents by snail mail because they need original signatures.
- Most invoices are digital now; only a few clients still use snail mail.
- Grandma still prefers snail mail to email or texts.
- Expect the contract in about a week — it's going by snail mail.
Where it comes from
Coined in the 1980s as electronic mail spread, using the snail as an obvious symbol of slowness next to instant digital messages. The term became widespread through the 1990s as email moved from offices into everyday life.
Related idioms
🎓 Think you know your idioms?
Take the English Idioms Test — 20 terms, instant result, no signup.
Take the English Idioms TestBuilt by the team behind Deep In.