A word made up by a greek bastard I know that simply means 'great', 'fantastic'. The greek equivalent of 'Fuckin' A'.
" Hey mate, do you wanna come to a barbeque at my place tomorrow?"
"Yeh mate, that'll be sickos festos!"
"Yeh mate, that'll be sickos festos!"
by SayAnything January 01, 2009