natch [\ nach \] , adverb;
1. Of course; naturally.
Quotes:
"She was even more delighted to hear that you were planning to invest in her health club, and hopes to see you there as a patron as well as an investor. At reduced rates, natch?" ~Evelyn E. Smith, Miss Melville Returns
"Yes, well, your father, who has no humanitarian instincts, is already designing a computer program to put the Lever process on automatic. For a small fee, natch." ~Dana Stabenow, Second Star
Origin:
Natch is a shortening and respelling of the common English word naturally .