Tommy couldn't hear the shit that Warren was signing about him.
by will bitten December 21, 2016
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An awesome boy that is kind, nice, derpy, hilarious and clumsy and is a wonderful bestfriend.
Is that Si?!
by kjj-123 December 30, 2012
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1. Spanish for "yes".

2. Abbreviation for "suck it!"

3. Abreviatiin for "self injury"
Wy don't u si!
by Bojojo July 03, 2011
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An unbelievably rich cunt (richer than Bill Gates) who wears a monacle and probably has other characteristics but none you really care about.

Also likes boys and sniffing the sweatline under fat guys flabbing man breasts.
Brian has loads of money for beer tonight. He could do a Si and buy the pub free drininks all night.
by Bobby Charlton March 18, 2004
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SI : meaning ha ha ha(in a sarcastic tone)or your not very smart
randomly made up on the spot because someone mispelt my name so i said si (because that was the bit they missed out) he said "what?" so i carried on saying si just to make him feel like he'd missed out on something. now it is a word! i hope:)
someone makes a joke about you thats not very funny you say "si si"
OR
someone answers a question wrong you say "si" and laugh
by Hannah macintosh April 11, 2004
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She says she doesn't see it, but I think people that don't even know her can see it from a mile away. She has a great smile that can make your day, and she seems to always have a smile to spare. She is very nice and caring and doesn't judge you. She is very cute and has a lot of little things that she does that can make you smile or laugh. She is very smart and always knows the right things to say. She is fun to hang out with and talk to. She is a very amazing person for so many reasons. She says she doesn't see it, but she should. She is a good singer too. Si-Si is perfect in every way and I am so glad that I get to call her my friend.
What song is this Si-Si?
What are you talking about this is one of your favorite songs!
by fomachu December 15, 2018
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