It's just a modern buzzword for something that really doesn't exist outside the realm of normal people.
Except that 'normal' is just a buzzword for mainstream people to mean 'not like me'. Sexual tastes and mores vary incredibly across the populace, and none of it is 'abnormal' or 'wrong' so long as the people participating are all doing so willingly.
Missionary position, with the lights on, but with your eyes closed, for the purposes of procreation, in less than three minutes (no talking) is not the start and finish of acceptable sex.
O.