Why does bbq mean complete?

Tik Tok Barbie Q means "finished", barbecue = Barbie q= barbecue = burning test = cremation = finished.

Barbie Q in "It's over, it's over, family, Barbie Q" is bbq itself, which is the homonym of the English word barbeque, and its original meaning is barbecue. Tik Tok Barbie Q means "finished", Barbie Q = barbecue = burning test = cremation = finished.