Crust lack is used by Italian-English to say something they don't understand but can also mean a swear.
Also is used to show lots of hatred to another.
If used wrong can be very offensive to others.
"Man that thing is Crust Lack"
"I swear that Crust Lack better shut his mouth"
"What's that Crust Lack"?
by ItaliaCraft December 7, 2011
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