Take it to the vet, it is better to do that than to clean it yourself because the vet can tell if it needs stitches or needs to be put on antibiotics from the gash. Also, the vet can tell you how to properly clean the gash on your cat.
In its most common sense, a gash is a deep cut.
Gash
Deep wound laceration
Gash, incision...
Gash, incision...
Wash it then take him/her to the vet, asap.
Go to the dentist.
Some kinds of mining leave deep gashes in the surface of the earth.The collision with the iceberg left a big gash in the hull of the titanic.
The word "gash" when used as a noun is defined as a deep cut or wound. When it is used as a verb it means to cut deeply with a knife or other sharp object.
It can be as deep as you like; it only needs to be deep enough to completely absorb urine and to keep the cat from exposing the bottom of the pan when it scratches in the litter. A good ballpark would be two to three inches deep for an average-sized cat.
A deep cut according to the medical industry is generally defined as one requiring suturing. Traditional stitches, staples, or liquid stitches may be used to close the wound until it can heal together on its own.
Sam Gash's birth name is Samuel Lee Gash Jr..