Insmallminator 

A device used to adapt a large headphone jack into a small headphone jack to facilitate interaction between audio devices.

Source: Team Waylett of Bumzl, South of the Mouth

"I need to listen to this brand new Simply Red album but I can't find my insmallminator"

Insmallminator by Source: Team Waylett of Bumzl April 21, 2008

Insmallminator 

A device used to adapt a large headphone jack into a small headphone jack to facilitate interaction between audio devices.

"I need to listen to this brand new S club album but I can't find my insmallminator"

Insmallminator by Team Waylett of Bumzl January 11, 2009