To be completely broke, with nothing at all. Can also mean to be naked. In Argentina 'estar en pelota' is the most vulnerable image of someone who's been left with absolutely nothing.

To confront someone directly or to rat someone out without any hesitation. In Argentina 'ir al frente' can be brave or treacherous depending entirely on context. The person who goes to the front doesn't hide.

To wink as a signal that something is agreed, there's something between two people, or as a sign of complicity. In Chile and Argentina it means you're both on the same team — no words needed.

To be very tolerant of mistakes and rule-breaking, or to have an extremely lax standard. Whoever has manga ancha sets no real limits and lets everything slide without consequence.