What are the vulgar lines used in the poem ‘The Professor ‘

 “You were so thin, like stick,
Now you are man of weight and consequence.”

This is also an example of vulgarism.

“How many issues you have? three?
That is good. These are days of family planning.”

This line depicts vulgarism.

The last lines of the poem portray vulgarism if their literal meaning is taken: opposite house’s ‘backside’