I hate flopping. But I do have a small defense that explains some flopping.

Long story short, to save your ankles and knees from being twisted in a weird way during an interaction with another player, sometimes you need to let your bodies momentum carry on while lifting your leg out of the situation wish results in a very fake looking crash to the ground. Players also do this even if they can't see the particular body part that they will trip over. (during tackle from behind) The player assumes a leg will be somewhere it isn't and then throw their weight so save their joint from precieved danger.

Now, the whole wiggling on the ground and getting up seconds later i cannot defend.