A catraindication is a cat changing its mind about what they were going to do, about to do, wanted to do, asking for from you, or thinking about doing. (Believe me, degrees of differences exist in catdom.)
Famous ones include a cat begging to eat. You provide them food. They sniff, and then hurry to the door and ask to be let out. Or, as though insulted, turn and mime burying that food, as though your offering is so appalling, they need to bury it like feces.
Another one for which cats have gained notoriety is the famous indoor/outdoor routine. I want out. No, wait, it’s wet out here. Let me in. No, it’s boring in here. Let me out another door. No, it’s wet outside of this door, too. Let me back in. Let’s try the front door again.
A third famous moment of catraindications well-known among catsters is the cat who begins a jump and then changes their mind…a split second too late.