Now down in sweet Texas where the bullshit lies thick
One hand on my saddle, one hand on my dick
'twas there I met Charlotte, the girl I adore
Charlotte the Harlot, the cow-punchers' whore

(there are many verses, and the last one tells us that her funeral procession was 40 miles long! I have the song on a very old tape of "Bawdy Western Ballads" by Oscar Brand