The term down in the mouth is identified in base64 scheme by the sequence ZG93biBpbiB0aGUgbW91dGg=, while the MD5 signature is equal to 1377924642fab9dfffa3f2e2c54e5a0c. The ASCII encoding of down in the mouth in hexadecimal notation is 646f776e20696e20746865206d6f757468.