Universally understood as a teasing or flirty signal in one-on-one chats. Softens blunt statements and adds a playful layer to otherwise neutral messages.
status meaning
When used in a WhatsApp status it often implies the poster knows something others don't, or is hinting at good news without revealing it.
double meaning
Can simultaneously mean 'I'm joking' AND 'I'm not fully joking' โ the ambiguity is the entire point. Recipients often have to read context carefully.