Coming from the Italian verb, scemare, or to decrease, or wane, scemo means: idiot, fool, stupid, dim-witted, silly, twit, dumb… It’s not particularly nice to call someone a scemo (pronounced shehmo), but let’s be honest, sometimes you just gotta.
Scemo can be used in two ways:
1- Scemo the noun- ‘Non fare lo scemo!’ – Don’t be stupid; don’t play the fool! or,
2- Scemo the adjective – ‘Ma se scemo?!’ – Are you stupid!?
Well you know what they say, scemo is as scemo does!