The Rump Wrangler would like you to ask him, "why Do you wear Wrangler jeans with that big label on you back pants pocket?"
1) Someone who wrangles rump, much like cowboys used to wrangle cattle and other animals. (see also ass spelunker)
1 - Holy shit that guy's ass looks hot!
2 - Jesus, Man, do you have to be such a flaming rump wrangler?
1 - Basically, yes.