twitter_spammer.rb

require 'twitter'

Twitter.configure do |config|
  config.consumer_key       = 'xxx'
  config.consumer_secret    = 'xxx'
  config.oauth_token        = 'xxx'
  config.oauth_token_secret = 'xxx'
end

threads = []

100.times do
  threads << Thread.new do
    Twitter.update "#twitterbottest #{rand(9999999)}"
    puts 'tweeted'
  end
end

threads.each {|t| t.join }