[78-L] Dept of meaningless lyrics?

[Geoffrey Wheeler]

Ron is perfectly correct about one of the uses of a fine tooth comb. 
Here is what one website has to say on the matter:

“The expression of “going over things with a fine toothed comb” was 
first used in the late 19th century. It was often linked to detection 
or police work. Just as a person would use a fine tooth comb to examine 
minute sections of hair, investigatory proceedings began to go over the 
minutia of each crime scene. Today the expression can apply not just to 
criminal investigation, but also to a very detailed approach to 
anything. An editor might go over a book or article with a fine tooth 
comb to check for any tiny mistakes, as might a teacher use a fine 
tooth comb approach when he/she is examining a student’s work. Computer 
programmers also focus on tiny mistakes that might occur in data entry 
and programming, and referencing the comb as used for lice, check for 
any “bugs” in their programs.”