A common expression that British subjects use for an overly horny man who would literally fuck anything with a slit, gash or hole in it. See Hugh Grant or The Prophet Muhammad.
I reckon that guy Tim is so overly sexed he would shag an open wound!
"As he stepped away from his latest victim, it became apparently obvious by the way her legs lay, that he had indeed left more than one open axe wound on her corpse." - From the Diary of Jack the Ripper.
Daniel Sloss whilst streaming on Twitch (in a Scottish accent): were you trying to say open flesh wound or the word vagina, because where I come from the words open flesh wound are used to mean the word vagina.