When you sneakily touch a person on the inner thigh and then smell your own hand.
Alyssa Magdalene: I went over to Jimmy’s cabin last night and he tried to Sneaky Mac me.
Ben Carrot: Ew he is such a creep.
When you rub your leg against a girl leg in the hope of getting a blow job.
Nikita Micro: How did you go last night at bible campy with Alyssa?
Connor Jimmy: Not good, I tried a Sneaky Mac but didn’t get the happy ending.