lingo

noun
UK /ˈlɪŋ.ɡəʊ/
US /ˈlɪŋ.ɡoʊ/

Lingo is the special words that a group of people use.

The kids at camp taught me their lingo.


OTHER MEANINGS

2. A language or way of speaking, especially one you do not know well.

I picked up a bit of the local lingo on my trip.

3. Words used by people who share a job or hobby.

Computer lingo can be hard to follow.

4. A funny or unusual way of talking.

He has his own lingo that only his friends understand.