"It's like Schmitz Katze!" - If we use this phrase, then something goes very fast or very easy. But why do we compare such a rapid process just with a purring four-legged friend, who is known to overslept two-thirds of his life?
If the fluffy balls of wool do not sleep, you can see them now and then also nimble and whiz through the area very quickly. Whether in the house over scratching posts, furniture and one or the other flatmate, or in the garden over hill and dale - so fast you can not look every now and then. So something has to be in the idiom when we say, "It works like Schmitz Katze".
Going out like Schmitz's cat: owed to the frightfulness
Anyone who has always wondered who this gentleman Schmitz really is, whose cat is racing away so quickly, should be helped here. This name evolved over time from the profession of blacksmith. Members of this workers' guild used to often have one or more cats in their workshops to chase away mice and other uninvited guests.
Once the mouse hunter came close to the anvil during the hunt and the owner was beating his forging right at that moment - then the cat got scared and all of a sudden went out in fear. You could also say: It goes off like the blacksmith's cat - or just Schmitz cat.
"Way like Schmidt's cat": variants of the phrase
The names "Schmidt" and "Schmitt" can be derived from the profession of blacksmith. There are therefore several variants of the expression, which is not about "Schmitz cat", but about "Schmidt's cat" or "Schmitts cat". In addition, the phrase "leaving" is relatively new and has only developed in the second half of the 20th century in German in the youth language. Before that it was said to be "like Schmidt's cat" or "to be like Schmitt's cat", if someone broke up suddenly and quickly.