borked IRB in iTerm2

iTerm.log

irb
~> Console extensions: wirble hirb ap rails2 rails3 pm interactive_editor
[?1034h>> e = p.metafields[0].namespace
p.metafields[0].namespace.value1]'namespace'].['namespace'].namespace
add_metafield(mf)
mf = ShopifyAPI::Metafield.new(:namespace => 'metafields', :key => "t
title", :value => "rabbit", :value_type => 'description')
x.namespace

 = mf.firstrequire 'fog'rubygems'
=> false
>> require 'rubygems'
e = p.metafields[0].namespace
NoMethodError: undefined method `metafields' for nil:NilClass
	from (irb):2
	from /Users/sultan/.rvm/rubies/ruby-1.9.2-p290/bin/irb:16:in `<main>'
>>