Top Definition
When something goes very wrong, when the shit hits the fan majorily. Things all seem to go wrong or backfire in a row.
P1 - Man! They're finding out about all the pranks and fucked up shit we did this year!

P2- Dude, it's a shitsunami!
by MAD IAN December 06, 2003

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.