The first reference I found when googling "sarcasm emoji" suggests the upside down smile. Think we have that one.Find some good ones to suggest and I'll definitely show them to her. Having a sarcasm emoji, if that's possible, would probably clear up a lot of misunderstandings on posts around here.
"The two best emojis to convey sarcasm are and . The upside down emoji or "" means that you are just joking and the conversation is not serious. The emoji means you are fed up with something or saying "but again, she/he will keep doing this ." Jul 29 2019