Where does “Zapzap” come from?

Zapzap (Portuguese) comes from Portuguese Zap, from English Whatsapp, from English what's up — how are you doing?.

Ancestry of “Zapzap”, step by step

StepLanguageWordMeaning
1PortugueseZapthe highest ranking card in a game of Truco; usually a trump card of clubs, but the rules can vary
2EnglishWhatsappAlternative letter-case form of WhatsApp
3Englishwhat's uphow are you doing?
Every word from English what's up →Every word from English Whatsapp →Every word from Portuguese Zap →