An exclamation of pure joy. Originates from Hespeler/Cambridge, Ontario. Usually followed by some form of motherfucker.

Alternate spelling: siqq titties (usually used when speaking on MSN)
Rachel: I just picked up a half quad!
Hannah: Sick titties!

OR

Rachel: I got us some triple stacked red Batmans!
Hannah: SICK TITTIES MUTHAFUCKA!
by Kacheldhfsdhfksjfd October 29, 2007
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when something is better then sick... think titties... those are always good
1-dude look at that car!
2-whoa! sick titty
by gunzoid November 29, 2006
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