Delete all your tweets from Twitter with Ruby

cleanup.rb

require 'twitter'
require 'peach'

USERNAME = '' # put your twitter username here

Twitter.configure do |config|
  config.consumer_key = YOUR_CONSUMER_KEY
  config.consumer_secret = YOUR_CONSUMER_SECRET
  config.oauth_token = YOUR_OAUTH_TOKEN
  config.oauth_token_secret = YOUR_OAUTH_SECRET
end

until Twitter.rate_limit_status.remaining_hits == 0 do
  for page in 1..20
    statuses = Twitter.user_timeline(USERNAME, {:count => 200, :include_entities => false, :trim_user => true, :include_rts => false, :page => page})
    puts "Rate limit=#{Twitter.rate_limit_status.remaining_hits}"
    puts "page=#{page} statuses=#{statuses.length}"
    statuses.peach do |s|
      if Twitter.status_destroy(s.attrs['id'])
        puts "Status #{s.attrs['id']} deleted."
      end
    end
  end
end
puts "All Tweets deleted or rate limit hit (reset time=#{Twitter.rate_limit_status.reset_time})."