I went a little crazy and through lambdas in the mix

gistfile1.rb

def create_a_line(n)
  b = f = ""
  print_number = true

  fizz_or_buzz = lambda {|n, mod_by| (n%mod_by==0) ? true : false }

  if fizz_or_buzz.call n, 5
		b="Buzz"
    print_number = false
	end

  if fizz_or_buzz.call n, 3
  	f="Fizz"
		print_number = false
	end
		
	print_string = ((print_number==true) ? "#{n}" : "#{f}#{b}")

	return print_string
end
 
	universe = 1..100 
  universe.each do |n|
  	a_line = create_a_line (n)
  	puts "#{a_line}"
  end