A cheap staple food sold to gullible white middle-class people for many times its actual value.
Gulliblewhite middle-class person: Oh, we only eat quinoa these days. It's more ethical than other crops; you can tell because it costs more, so it must be supporting the farmers who grow it.
Quiznak is a term in the animated show VoltronLegendary Defenders and it's closest translation from Altean to English is some combination (or can be used in place of either) of the f-word and dang it.
"Quiznak! You're lucky i have a case of the old ‘sleep chamber knees.'" -Coran