muddle up

US /ˈmʌd.əl ʌp/
UK /ˈmʌd.əl ʌp/
"muddle up" picture
1.

confundir, mezclar

to confuse two or more things or people

:
I always muddle up their names because they sound so similar.
Siempre confundo sus nombres porque suenan muy parecidos.
The instructions were so complicated that I muddled them up.
Las instrucciones eran tan complicadas que las confundí.