What is S.i.s.?
1.
An acronym for Sudden Insanity Syndrome
Joan Crawford had a lot of experience with S.I.S. moments.
See
2.
Self-inflicted stupidity. An injury that you caused to yourself by an act of stupidity.
Friend 1: How did you get that cut?
Friend 2: I was running with scissors down the stairs and my shoes were untied.
Freidn 1: Thats some serious S.I.S.
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Random Words:
1.
Another form of saying, "Holy Shit!"
Holy shoes... your dog just crapped all over the carpet!..
1.
1. where you hide your strap into your car
2. where you hide your strap and your dope in your house
1. got the deuce deuce in da stash..