When someone does something stupid, or something back fires, or anything negative happens, a sick beak is in order.
Origin: Calgary, Alberta. Joey Laslo, and Corey Watts.
Cameron: Joey just downed an entire bottle of tequila and is vomiting on your bed!
Cameron: ahahah sick beak.
The phrase often said when two people are making mean comments back and forth (beaking) and one of the two lands an amazing comeback or gives out a good one it is referred to as sick beaks.
A cripple: get your ass out of the way im trying to get threw here!
a guy: shut it dead legs im going
the cripple: Hey asshole i may not be able to move my legs but at least i have all THREE of mine.
The cripple just landed a SICK BEAK
The cripple if he had a friend would most likely yell "oh man, "sick beaks"