Each week of 2017 we present an English idiom.
"to get (one's) wires crossed": to have a different understanding of the same thing, a misunderstanding; s. falsch verstehen, einander vorbeireden
Tip: Always use a plural pronoun, i.e. "we", "you (two)", "they". One person can't get his or her wires crossed.
Example 1: No, that's not at all my understanding of the situation. Looks like we got our wires crossed.
Example 2: They're on site but no one else is there. Seems like they got their wires crossed about the location.