Se, lallero

Or if you prefer, if lallero:
It's an italian word used ironically to say "yeah, sure".

Uomo1: "Oggi vincerò la lotteria!"

Uomo2: "Se, lallero!"

Man 1: "Today I will win the lottery!"
Man 2: "If, lallero!"

by Pippo dalnaso November 16, 2018