mix up

verb

A mix, blend, or variety.
“Next time, let's ask a group with a different mix up.”
A confusion or reversal.
“I refuse to send them any more money until they fix this mix up.”

To mix or blend thoroughly and completely.
“She mixed up peat moss, humus, and compost to make potting soil.”
To combine thoroughly.
“All the smells of the food had mixed up together.”
To prepare something from ingredients that are mixed.
“She mixed up a batch of her own potting soil.”
“The picture of their life that follows suggests in a few words a country kitchen—the sizzling of fish over the charcoal fire, fanned by the bellows to a hot flame, the mixing up of a Thasian sauce for the fish, the kneading of dough.”
To confuse or reverse.
“I always mix up Vermont and New Hampshire on a map.”
“I always mix up Jack with Jake.”
To become involved with, especially socially or romantically.
“He got mixed up with a bad crowd.”
“Then he got mixed up with an older woman.”
To shuffle.
“mix up this Rubik's cube”