GDTRFB meaning in Community ?

"Going Down The Road Feeling Bad" (also known as the "Lonesome Road Blues") is a traditional American folk song. The first known known recording is from 1923 by Henry Whitter, an Appalachian singer. The earliest versions of the lyrics are from the perspective of an inmate in prison with the refrain, "I'm down in that jail on my knees" and refer to eating "corn bread and beans." The song has been recorded by many artists such as Woody Guthrie, Bob Dylan, Skeeter Davis, Elizabeth Cotten, and the Grateful Dead, and the song is featured in To Bonnie from Delaney, "Mountain Jam", Born and Raised World Tour, The Grapes of Wrath, and Lucky Stars.