Good lord, walk light like the floor slick
If the floor was slippery then you would wanna walk lightly to prevent slipping on it. This is playing off the idiom “tread lightly”. Earl is pretty hardcore so watch what you say and do around him or you’ll “catch a Nike SB to the face”. .
He also makes a reference to Jesus, as in he walks light like the floor is slippery, like how Jesus walked on water. Hence the “good lord” in the beginning of the line
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