27 Nights

Literally 'cave/lair', used figuratively to describe a place seen as disorderly, morally dubious, or socially undesirable. The speaker's attitude toward the place is built into the word.

Fixed expression of surprise. 'Esperar' here means 'to expect', not 'to wait'. The construction 'no me lo/la esperaba' is very natural in spoken Argentine Spanish and can trip up learners who read 'esperar' only as 'to wait'.

Literally 'to flutter' (as birds do), but used metaphorically for people who hang around someone persistently, often implying they want something (attention, money, favor).

'Guacho/a' literally refers to an orphaned or abandoned animal or child, but used as 'la guacha' in admiring exclamations it shifts to an affectionate, impressed remark about someone's boldness or ability. Deeply Argentine/Rioplatense.

Standard River Plate slang for money, equivalent to 'plata' in everyday speech. Spelled 'guita' or 'güita'. Neutral in tone and extremely common.

'Mango' is Argentine slang for a peso (or any small unit of currency). 'No tener un mango' means to have no money at all. The expression is idiomatic: 'mango' in this sense is not the fruit.