To have a good time without paying for it. It can also refer to owing your friends money and then flipping the script on them and trying to create debts that never existed.
"Hey man you gonna chip in for that pizza tonight?" "Nah man I'm broke, I think I'm just gonna Feroli it."
A complex profanity in italian. It means litterally "God with a magnetic ass in the valley of the iron cocks". Used mostly for fun.
"Now, let's do a challenge for the funniest profanity!"
"Ok, i'll begin: Dio con il culo magnetico nella valle dei cazzi di ferro!"
"Ahahaha that was cool!"