The sexual act
when a man 1) pours barbecue sauce into a woman's vagina; 2) has sex with her; 3) then makes her lick the sauce and cum off of his penis; 4) finally the woman squirts the mixture up the man's ass hole.
" comes from the use of barbecue sauce and the "cloverleaf
" comes from the use of four steps.
Texas cloverleaf is way dirtier than the Louisiana Purchase.