Que onda is spelled "¿Qué onda?" and is slang in Spanish for "Whats up?"

This slang/greeting is mostly used in Mexico, Argentina, Uruguay, Guatemala and Chile.
1. "¿Che flaco, qué onda?" | "Hey man whats up?"

2. "¡Hola Felicia! ¿Qué onda? ¿todo bien?" | "Hey Felicia! Whats up? Is everything ok?"
by PabzCeleste November 12, 2014
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phrase used to ask your ex "what's up" after a while of not talking to them. "que onda perdida" means "what's up lost girl" referring to the fact that your ex is lost without you.
me: qué onda perdida (what's up lost girl)
ex: nada, te extraño😩(nothing, i miss you😩)
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