shitwrench is a spanner like object used to scoop, or carry an animals or human shit. The invention was invented by a bloke called Jeff from Bristol, 2007. It can also be used as an offensive term, instead of 'arsehole'.
'get lost you shit wrench'.
'I'll shove that shitwrench up yr crapper in a minute'
Another term for a spanner like tool used for anal intercourse.
Used in a sentance.."Alright zoe pull that shitwrench out of your ass and let me have a go!".