Sockop are enemies in Mario & Luigi: Bowser's Inside Story.
The Sockops are green sock-like creatures that inhabit Dimble Wood. They are able to hop through patches of thorns. They are able to create a yellow goo inside there hole. They use this hole as a mouth as well, as they suck on objects to eat them with it. When an enemy touches the goo they may become poisoned.
Their leader is a huge Sockop that can be shrunk down when knocked out. When a Sockop is knocked out they can be worn as an actual sock to help Mario or Luigi hop on thorns as well. When provoked a Sockop may shoot yellow orbs that contain the poisonous goo but it will not poison Mario or Luigi.