minicup noun2 •A cup (any sense) that is extra small.A Tupperware minicup was used as a diffusion bottle. — 1986 •A miniature version of one of the cars used in NASCAR's Sprint Cup events, used in races run by the Miniature Motorsports Racing Association.Yarbrough told investigators her minicup suddenly accelerated when she stepped on the brake. — 1990 formsminicups