almost always mispelled as "Sidney", usually redhead, often giggly, fun, happy go lucky, very family oriented, loyal, with bad taste in NHL hockey teams.
This is when you make a conscience decision to use Heinz ketchup as a lubricant and masterbate. You then ejaculate in your own hand and eat it. Your mother's premenstrual fluids can be substituted for Heinz ketchup.
After Malkin got that bullshit goal to win the game ... He instantly went to the locker room and gave himself the sindey crosby!
If you ever meet a Sindy in your life, you better keep her close. She's a loyal, smart, kind girl with lots of love. She'll make you laugh, and she can light up a room with her gorgeous smile. She's a brave and outgoing soul with a positive outlook on life. She's an easy-going gal and loves having conversations with anyone. If you ever have the chance to become friends with this one of a kind girl, you better take it.
"wow have you met that girl? She's super sweet and really funny!"
"yes! her name's Sindy, right? I talked to her earlier today!! such a nice person."