override_object.rb

require 'typo_fixer'

class Object
  include TypoFixer
end

p [1, 2, 3].shaflfe.joni #=> "213"

sample.rb

require 'typo_fixer'

class Sample
  include TypoFixer

  def some_method
    'some value'
  end
end

sample = Sample.new
p sample.sme_motoehd #=> "some value"

typo_fixer.rb

module TypoFixer
  def self.included(base)
    base.class_eval do
      alias_method :method_missing_without_fix_typo, :method_missing
      alias_method :method_missing, :method_missing_with_fix_typo
    end
  end

  def method_missing_with_fix_typo(name, *args)
    if name && method = find_method(name)
      $stderr.puts "WARNING: execute `#{name}` as `#{method}` for #{self}"
      send(method, *args)
    else
      method_missing_without_fix_typo(name, *args)
    end
  end

  private
  def find_method name
    name.to_s.split(//).permutation.each do |candidate|
      _candidate = candidate.join
      return _candidate if respond_to?(_candidate, true)
    end
    nil
  end
end