Quote Originally Posted by esspic View Post
it seems that this sword was big and bulky and not usefull in combat, it explain its nickname
I don't know why it gives its name to straight razors.

An other explanation :
in french slang, "chou" means head.

"coupe-chou" would come from the same origin as cut-throat. It's also one of the nicknames of the guillotine...
Ah, that makes sense now! Thank you