Karrap Beer is a beer sometimes used in the Starbird universe. In Introspective, Johnny In Calvert is seen drinking this while eating his Bacon Fat from the silo.
Appearing In -In Betwixt and Between, when the heroes pass through Missouri, there is a factory with a sign that says Karrap Lager
-In Starbird I, General Kilpatrick drinks a can of Karrap Beer in his office.
-In Westdale: The Series!! Kyle orders it at a resteraunt
-In a deleted scene from Spacelite, Kelly's father is seen guzzling cans of the stuff.
Karrap is an extended southern drawl version of the word Crap, Implying that the beer tastes like crap. Possibly a parody of cheap popular beer in general, made in the American midwest.