The Mexican Cartwheel is a standing Sixty-Nine. Hetero - The man is standing up, the woman has his penis in her mouth, and her thighs are on his shoulders, his face is in her crotch. He can have his arms around her waist, or holding her shoulders. Just be careful getting into, and out of, this position, no dropping of the partner is allowed.
Guy: "Wanna do a Mexican Cartwheel babe?"
Babe: "Only for a few minutes this time, it gives me a headache."
The act of giving a sexual partner a shocker and then using your shit-stained pinky finger to give her a dirty sanchez after the sexual act is completed.
"Yep, Carol, he gave me a Mexican shocker... he stuck two in the pink and one in the stink, and then smeared his pinky finger across my upper lip. What a guy!"