What cowboys called a hand rolled cigarette, not a joint, and they didn't even have "blunts" back then!
Listen to the Marty Robbins song "Cowboy in the Continental Suit" where it says the cowboy pulled a "sack of Deuce" and "rolled himself a quirly". He's talking about tobacco, not pot!
What cowboys of the Old West called a Joint
I saw Grandpa Sid rolling a quirly this morning in his cowboy hat while sitting in his rocker