MEANING: noun:
1. An inordinate amount of wealth.
2. A place extraordinarily secure and thus impossible to break into.

ETYMOLOGY: After Fort Knox, nickname of the United States Bullion Depository, a vault that houses most of the US government’s gold, in Fort Knox, Kentucky.

FORT K? NO. - Are we going to the gold storage place? Negative.
(syn. FORT K? NOT!; ant. FORT K: NOW!)

FOR TKO X - Was that prize for his ninth knockout? No.

FORT K'NEX - part of the "Cowboys and Indians" set of a children's construction toy