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.
See
Random Words:
1.
(adj.) - the state of being sufficiently inebriated to make a complete ass of yourself
To ensure a good time while partying, it's ..