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to drop ones trousers (or legwear) promptly yell "yaks are go" pull up the trousers and continue as if nothing happened.

this should only occur upon hearing the words "project Y" when these are heard anyone who knows about the project must complete the aforesaid actions. no matter the location.
I hear he dropped a project y in front of his family!

my god thats brave...
by scary steve January 06, 2010
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when a man is grinding his project X against a woman's ass and she creams.
damn mom, that's some wicked project y running down your leg!
by Steve Winters November 01, 2003
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