This phrase is used to describe someone who thinks too highly of themselves, to the point of arrogance or narcissism. It can be translated as 'believing oneself to be the last sip of the mango', implying that the person thinks they are more special or important than they actually are.
Examples
- Spanish: No me gusta hablar con él, siempre se cree la última chupada del mango.
- English: I don't like talking to him, he always thinks he's the best thing since sliced bread.