muddle up

phrasal verb·1 sense·particle up

Meanings

1

Confuse two or more things, often by mistaking one for the other

Why “up”? Something normal is disturbed. Feelings, systems, machines, or behavior become noisy, troubled, or out of control.

I always muddle up their names.
I always confuse their names with each other.
He muddled up the twins again.
He confused the twins with each other again.

Don't confuse with

Muddle up means confuse two or more things, often by mistaking one for the other. Muddle through means get through despite confusion or difficulty.

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