He is a handyman doll with a backward-facing head (as a result of the manufacturer putting his head on the wrong way round) and a love of machines. Always calm in a crisis, Back-To-Front's catchphrase is "No problem!".
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...