The specific laziness of not wanting to move.
A noun you *have*: *tengo fiaca* means I can’t be bothered — not tired exactly, just unwilling. *Hacer fiaca* is deliberately lounging around doing nothing, which Argentines treat as a legitimate plan.
Lunfardo, from Italian *fiacca*, weariness.
Harmless and affectionate about yourself. Said about someone else it is a mild dig.
Reading a definition isn't the same as saying it to someone. Lingo Kaiava is a voice tutor set to Argentine Spanish — it uses fiaca the way locals do, corrects you in the moment, and never "fixes" the way real people actually talk into textbook Argentine Spanish.
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