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2 definitions by THDaddy

The marks left inside the toilet bowl following a particularly gruesome crap. It looks as if they were drawn on with a Sharpie.
Man, I just punished your bowl and left a huge shit sharpie.
by THDaddy March 18, 2008
A large amount of snot that comes out of your nose and gets all over your face/clothes/innocent bystanders when you sneeze.
1.) Man, this cold gave me a snavalanche so bad I had to change my clothes.

2.) Don't bring that cat near me unless you want to see a monster snavalanche!
by THDaddy March 19, 2008