a sex move where the female is positioned on her upper back with her butt facing upwards (her feet behind her head). the man is on top penetraing her anally (thus his thrusts are vertically oriented, like an oil drill) he then pulls out very quickly causing the female to shi uncontrollably, as if the drill struck oil.
hey steve i heard you tried out the texas oil drill last night
yeah man, it was wild, cleanup was a bitch though
haha i bet, southern girls are crazy