$ man human

field guide · V — emotional decoding

Sarcasm

They say the opposite of what they mean and expect you to catch it by tone alone. See BUGS.

see also — I'm fine

SARCASM(1)                                          HUMAN GLOSSARY
  means ........ they say the opposite of what they mean and
                 expect you to catch it by tone alone. see BUGS.
  see also ..... i'm fine
  payload ...... /glossary/sarcasm.json

i'm fine · raw json