1 definition by Birdsarentreal
Acronym for Shake My Tinfoil Hat, to be used as an alternative for SMH (Shake My Head) for conspiracy theorists.
Person A: You don’t actually believe that birds are real do you?
Person B: Of course they are!
Person A: SMTH
Person B: Of course they are!
Person A: SMTH
by Birdsarentreal June 23, 2019