Chapped lips..?

This cowboy rides into town after being on the range for 6 months. He ties his horse to the hitchin' post and slaps the dust off his chaps with his stetson. One old timer sitting on the porch of the saloon greets the drover, "Howdy, been ridin' long?"

"Yea, been six months in the saddle, without a bath"

Suddenly the cow poke pulls up his horses tail, sticks his finger in the hole and wipes it across his mouth.

"What the hell are you doin' cowboy?" asked the old timer.

"Got chapped lips".

"And that helps?"

"No, but it sure keeps me from lickin' 'em..."